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- Breaking Space News: Nov 17 - 23, 2024
Breaking Space News: Nov 17 - 23, 2024
New Chinese Hypersonic Spaceplane Drop! In Space News This Week: Artemis 3 Concepts, High-Res Images of the Sun, China's Inflatable Habs, Lunar Rescue Design, India's Lunar Vision, US Report on China's Tech Growth, Growing Defense Investments, Dark Matter, Early Blackholes and More.
Good to have you here explorer🚀,
Another eventful week just went by. Explore some truly inspiring feats in science and some stunning visuals.
Get to it now.
Space is here.
IMAGES
Artemis III Lunar Lander Mission Concepts: SpaceX, NASA
NASA and SpaceX have released renders of key moments of its Artemis lunar lander mission, highlighting the collaboration to develop the Starship Human Landing System (HLS). The Starship HLS will carry astronauts from lunar orbit to the Moon's surface and back for Artemis III and Artemis IV missions. Additionally, NASA plans to assign lunar delivery missions to SpaceX and Blue Origin to prepare for long-term exploration of the Moon. These missions will require the companies to develop cargo versions of their crewed human landing systems, with SpaceX delivering a pressurized rover and Blue Origin delivering a lunar habitat.
A rendering of SpaceX’s Human Landing System (HLS) on the Moon. The Starship HLS is roughly 50 meters tall. (Credit: NASA, SpaceX)
A rendering of a Starship tanker (bottom) transferring propellant to a Starship depot (top) in low Earth orbit. Before astronauts launch in Orion atop the agency's SLS (Space Launch System) rocket, SpaceX will launch a storage depot to Earth orbit. For the Artemis III and Artemis IV missions, SpaceX plans to complete propellant loading operations in Earth orbit to send a fully fueled Starship Human Landing System (HLS) to the Moon. (Credit: NASA, SpaceX)
An artist’s concept shows how a crewed Orion spacecraft will dock to SpaceX’s Starship Human Landing System (HLS) in lunar orbit for Artemis III. Starship HLS will dock directly to Orion so that two astronauts can transfer to the lander to descend to the Moon’s surface, while two others remain in Orion. Beginning with Artemis IV, NASA’s Gateway lunar space station will serve as the crew transfer point. (Credit: NASA, SpaceX)
This concept shows two Artemis III astronauts preparing to step off the elevator at the bottom of SpaceX’s Starship HLS to the Moon’s surface. At about 164 feet (50 m), Starship HLS will be about the same height as a 15-story building. (SpaceX) The elevator will be used to transport crew and cargo between the lander and the surface. (Credit: NASA, SpaceX)
The artist’s concept portrays SpaceX’s Starship HLS with two Raptor engines lit performing a braking burn prior to its Moon landing. The burn will occur after Starship HLS departs low lunar orbit to reduce the lander’s velocity prior to final descent to the lunar surface. (Credit: NASA, SpaceX)
The upcoming Artemis II mission, scheduled for September 2025, will take four astronauts to the Moon, marking the first crewed mission of the Artemis program. The Artemis III mission, slated for 2026, will be the first time astronauts have landed on the Moon since Apollo 17 in 1972.
Red Supergiant WOH G64, Close-Up of a Star Outside Our Galaxy: GRAVITY instrument on ESO’s VLTI
This is an image of the dying star WOH G64, taken by the GRAVITY instrument on the European Southern Observatory’s Very Large Telescope Interferometer (ESO’s VLTI). This is the first close-up picture of a star outside our own galaxy, the Milky Way. The star is located in the Large Magellanic Cloud, over 160 000 light-years away. The bright oval at the centre of this image is a dusty cocoon that enshrouds the star. A fainter elliptical ring around it could be the inner rim of a dusty torus, but more observations are needed to confirm this feature. (Credit: ESO/K. Ohnaka et al.)
An artist’s reconstruction of the star WOH G64: the first star outside our galaxy to be imaged in close-up. It is located at a staggering distance of over 160 000 light-years away in the Large Magellanic Cloud. This artistic impression showcases its main features: an egg-shaped cocoon of dust surrounding the star and a ring or torus of dust. The existence and shape of the latter require more observations to be confirmed. (Credit: ESO/L. Calçada)
The Large Magellanic Cloud is a satellite galaxy to the Milky Way, located 160 000 light-years away from us. Despite the staggering distance, the GRAVITY instrument of the European Southern Observatory’s Very Large Telescope Interferometer (ESO’s VLTI), managed to take a closed-up picture of the giant star WOH G64. This image shows the location of the star within the Large Magellanic Cloud, with with some of the VLTI’s Auxiliary Telescopes in the foreground. (Credit: ESO/K. Ohnaka et al./Y. Beletsky (LCO))
SpaceX Dragon, Aurora, City Lights, “Wonky” Starlink Streaks from the ISS: Astronaut Don Pettit
A SpaceX Dragon docked at the International Space Station is captured in this timelapse image taken by NASA astronaut Don Pettit in November 2024. The background shows an aurora and the streaks of city lights on Earth, illustrating the movement of the ISS. (ICredit: NASA/Don Pettit)
SpaceX Starlink satellites below the International Space Station on November 2024, visible as "wonky" white flashes in this timelapse photo by Pettit. The streaks are city lights. (Credit: NASA/Don Pettit)
High-Res Sun Images, Sunspots, Magnetic Fields, and Surface Movements: Solar Orbiter
This image, taken by the Solar Orbiter's Polarimetric and Helioseismic Imager (PHI) on 22 March 2023, shows the Sun in visible light, capturing red light at 617 nanometers. It displays the Sun's photosphere, the layer from which most solar radiation originates, with temperatures between 4500 and 6000°C. Notable features are sunspots, appearing as dark spots where the Sun's magnetic field disrupts plasma convection, making them cooler and dimmer. The high-resolution image, spanning about 8000 pixels in diameter, is part of a set, including the first full-disc views from PHI and a corona image from the Extreme Ultraviolet Imager (EUI). On 22 March 2023, Solar Orbiter was around halfway between the Sun and Earth. Use the ‘Where is Solar Orbiter?’ tool to see its current position and mission trajectory. (Credit: ESA & NASA/Solar Orbiter/PHI Team)
This image, called a magnetogram, shows the line-of-sight direction of the Sun's magnetic field as measured by the Solar Orbiter's Polarimetric and Helioseismic Imager (PHI) on 22 March 2023. The Sun's magnetic field is concentrated around sunspots, pointing outward (red) or inward (blue). In other areas, the field is weaker (grey, yellow, green). The strong magnetic field around sunspots inhibits convection, making them cooler and darker. (Credit: ESA & NASA/Solar Orbiter/PHI Team)
This velocity map, or ‘tachogram,’ shows the Sun's surface movement as captured by the Polarimetric and Helioseismic Imager (PHI) on the Solar Orbiter on 22 March 2023. Blue regions indicate movement towards the spacecraft, while red regions indicate movement away. The map highlights the Sun's rotation and material flung around sunspots caused by magnetic fields. The Evershed flow, a major sunspot flow pattern, is visible as radial outflows from sunspot centers. The red and blue patches result from the spacecraft's viewing angle, showing material moving either towards or away from the PHI instrument. (Credit: ESA & NASA/Solar Orbiter/PHI Team)
This high-resolution image, taken by Solar Orbiter's Extreme Ultraviolet Imager (EUI) on 22 March 2023, shows the Sun's corona in ultraviolet light at 17.4 nanometers, revealing plasma at around a million degrees Celsius. Bright lines and loops from active regions match sunspots seen in other Solar Orbiter images. (Credit: ESA & NASA/Solar Orbiter/PHI Team)
SCIENCE
Space Transportation to Trial Hypersonic Cuantianhou Spaceplane in 2025
Beijing-based hypersonic spaceplane company Space Transportation aka Beijing Lingkong Tianxing Technology Co., Ltd., is set to test its Cuantianhou prototype spaceplane in the second half of 2025. This near-space reusable spaceplane is designed for vertical takeoff and landing, powered by a solid rocket booster. According to Space Transportation, the spaceplane will cruise at Mach 4 and can autonomously carry two passengers. In addition to Cuantianhou, the company aims to develop a larger, 50-passenger spaceplane by 2031. The project, however, faces significant technical challenges and must navigate international regulations on hypersonic travel.
Space Transportation’s hypersonic plane, Cuantianhou, can travel at speeds of Mach-4. (Space Transportation)
A scale model displayed at the Space Tech Expo in Bremen, Germany, closely resembled the company’s Yunxing supersonic passenger jet prototype that completed a test-flight in October, though it was a smaller, nearly identical version according to SpaceNews.
ISRO Announces Plans for Lunar Space Station by 2040, Reports Chandrayaan-2's Collision Avoidance
The Indian Space Research Organisation (ISRO) has announced plans to establish a lunar space station by 2040, marking a significant milestone in India's space exploration efforts. This ambitious project is part of a three-phase roadmap aimed at establishing a long-term human presence beyond Earth's orbit. The first phase involves robotic missions, including the upcoming Chandrayaan-4 sample-return mission scheduled for 2028. The second phase targets a crewed moon landing by 2040, followed by the construction of the lunar space station.
The lunar station will serve as a hub for scientific research and support crewed missions to the moon's surface. It is expected to be completed around the same time as India's astronauts land on the moon, with plans for a permanent lunar base before 2050. This initiative follows the success of the Chandrayaan-3 mission, which made India the fourth country to achieve a soft landing on the moon.
Meanwhile, according to a monthly Indian Space Research Organisation (ISRO) report, Chandrayaan-2 orbiter had to perform an emergency maneuver to avoid a potential collision with South Korea's Danuri spacecraft. This event highlighted the increasing traffic and complexities in lunar orbit, raising concerns about space traffic management and the need for improved coordination among space-faring nations.
NASA Launches Challenge for Lunar Rescue System Design
NASA has launched the "South Pole Safety: Designing the NASA Lunar Rescue System" challenge, seeking innovative solutions for safely transporting incapacitated astronauts on the lunar surface. The challenge focuses on developing a compact, efficient system that a single astronaut can deploy to carry a fully suited, incapacitated crew member (weighing up to 343 kg or ~755 lb) back to the human landing system. This initiative aims to enhance safety measures for future Artemis missions, starting with Artemis III, which will explore the Lunar South Pole.
China Successfully Tests Inflatable Space Module in Orbit
China has conducted a successful test of its first inflatable space module in orbit. The experiment took place aboard the Shijian-19 spacecraft, which was launched on a Long March 2D rocket in September and completed its mission with a landing in the Gobi Desert. Developed by the China Academy of Space Technology (CAST), the module features flexible composite materials that allow it to inflate once in orbit. This technology provides advantages such as reduced weight and increased folding efficiency, potentially offering a new approach for constructing large-scale space-sealed modules.
The organization achieved this advancement through expertise in system design, structural engineering, mechanisms, thermal regulation, and space environment. Ground-based evaluations, in collaboration with partners, tested airtightness, debris impact resistance, extreme pressure endurance, vibration, and thermal vacuum conditions.
Exolaunch Introduces Modular Adapter for Satellite Deployments in 2026
German launch services provider Exolaunch is set to deploy satellites using its new Exotube universal modular adapter starting in 2026. Unveiled at the Space Tech Expo Europe in Bremen, Germany, the Exotube adapter is designed to integrate, launch, and deploy spacecraft ranging from cubesats to 500-kilogram satellites. The first launch using Exotube is planned for the first quarter of 2026 on an American medium or heavy-lift launcher. The adapter's hexagonal base and cubic upper structure, equipped with cameras, offer flexibility and efficiency, making it compatible with various launch vehicles. Exolaunch aims to address the growing demand for small satellite launches and reduce wasted capacity through this innovative solution.
Long March 10 Fairing Test Advances China's Lunar Goals
CALT successfully completes fairing separation test for the Long March 10 rocket, advancing crewed LEO and lunar missions, with the goal of landing astronauts on the Moon before 2030. (Credit: CALT)
In a crucial step towards its lunar ambitions of landing astronauts on the moon by 2030, China successfully completed a fairing separation test for its Long March 10 rocket series. Conducted by the China Academy of Launch Vehicle Technology (CALT), the test evaluated the fairing design, connection structure, and separation plan, all of which met their design requirements. The fairing, measuring 5 meters in diameter and height, is crucial for protecting the spacecraft during ascent. This test aligns with China's schedule, as the initial launch of the Long March 10A is planned for 2026. The rocket will eventually carry a new generation crew spacecraft and lunar lander to the moon.
Choctaw Nation Heirloom Seeds Return from Space for STEM Experiment
In a unique blend of cultural heritage and scientific exploration, NASA's Choctaw Heirloom Seeds project saw five varieties of heirloom seeds from the Choctaw Nation of Oklahoma flown to the International Space Station (ISS) in November 2023. After spending six months in microgravity, the seeds returned to Earth in April 2024. This spring, students at the Jones Academy, a boarding school for Native Americans in Oklahoma, will plant these space-flown seeds alongside Earth-bound counterparts in the school's Growing Hope Garden. The experiment aims to inspire Native American youth to pursue careers in STEM fields while preserving heirloom varieties. The project also integrates the seeds' journey and the students' experiments into the middle school Earth-Sky STEM curriculum, developed by Oklahoma State University.
Five heirloom seed varieties from the Choctaw Nation of Oklahoma—Isito (Choctaw Sweet Potato Squash), Tobi (Smith Peas), Tanchi Tohbi (Flour Corn), Tvnishi (Lambsquarter), and Chukfi Peas—were sent to the International Space Station in November 2023. (Credit: NASA/Loral O’Hara)
GOVERNANCE
JAXA and ESA to Collaborate on Deep Space Missions
The Japan Aerospace Exploration Agency (JAXA) and the European Space Agency (ESA) have formalized an agreement to expand their cooperation in deep space exploration. The joint statement, signed on November 20, 2024, outlines plans for collaborative missions to the Moon, Mars, and beyond. This partnership aims to combine JAXA's robotics capabilities with ESA's expertise in space science and exploration.
The agreement underscores the importance of international collaboration in tackling the challenges of deep space exploration, such as developing sustainable life support systems and advancing propulsion technologies. Both agencies have committed to sharing resources, knowledge, and technology, with the first joint mission expected to launch within the next five years.
I signed a Next Big Cooperations statement with @JAXA_en aimed at deepening collaboration in space and Earth science, human and robotic exploration, and planetary defense. While #CM25 will fund these activities, given the urgent deadline of 2029 we will start to study potential… x.com/i/web/status/1…
— Josef Aschbacher (@AschbacherJosef)
8:20 AM • Nov 21, 2024
FAA Assessment Supports More SpaceX Starship Launches in 2025
The U.S. Federal Aviation Administration (FAA) is likely to approve SpaceX's request to increase Starship launches at its South Texas site from five to 25 in 2025. The FAA has released a 160-page draft environmental assessment (EA) that approves SpaceX's request to increase annual Starship launches from five to 25 at Starbase in South Texas. This approval supports SpaceX's goal of 25 launches in 2025, including landings for both the Super Heavy booster and the Starship upper stage. SpaceX aims to ramp up its Starship operations significantly, with the goal of eventually conducting multiple launches per day. The FAA's decision follows recent successful test flights and ongoing efforts to streamline regulatory processes.
SpaceX's Starship vehicle launches on its sixth test flight on November 19. (Credit: SpaceX via Space.com)
U.S. Commission Calls for Measures Against China's Space and AI Developments
A recent report by the U.S.-China Economic and Security Review Commission calls for urgent measures to counter China's rapid advancements in artificial intelligence, quantum computing, biotechnology, and space technologies. The 793 page report highlights China's state-led investments and "techno-nationalist" strategies as key drivers behind its progress in these critical sectors. Among its 32 recommendations, the commission urges Congress to prioritize space as a vital arena of competition and conduct a comprehensive review of the U.S. commercial space industry. It also suggests the U.S. establish a "Manhattan Project-like program" to develop artificial general intelligence (AGI) capabilities.
The PLA Rocket Force is constructing more than 270 new missile silos for its ICBM force in remote regions of China. (Credit: U.S.-China Economic and Security Review Commission via SpaceNews)
China’s expansion in military space capabilities, notably its space-based surveillance and counter-space technologies, poses significant threats to U.S. interests, the report claims. The People's Liberation Army has significantly increased its satellite presence in low Earth and geostationary orbits, enhancing its surveillance capabilities. These advancements, coupled with China's pursuit of directed energy weapons and anti-satellite systems, could disrupt U.S. satellite operations, according to the report.
In response, the commission recommends reevaluating regulations governing the U.S. commercial space sector to promote faster innovation while safeguarding sensitive technologies. It also calls for a transformative approach to AI development, emphasizing the need for the U.S. to maintain its competitive edge and prevent falling behind China in critical technology domains.
MILITARY
US National Security Launches on ULA Vulcan Rocket Postponed to 2025 by Space Force
Blue Origin's oxygen-rich staged combustion engine BE-4 powers the first stage of United Launch Alliance's Vulcan rocket. (Credit: Blue Origin)
The U.S. Space Force has adjusted its timeline for national security launches using United Launch Alliance's (ULA) Vulcan rocket, pushing the debut to 2025 due to certification delays. Despite a successful second certification launch in October, an anomaly with a solid rocket booster is still under review. The Space Force currently relies on SpaceX's Falcon rockets for these missions, highlighting the urgency of Vulcan's certification. The delay impacts the National Security Space Launch (NSSL) program, which aims to diversify launch providers.
Investor Optimism Grows in Space Sector Under Trump as Space Force Contracts Enhance Surveillance Tech
Investor confidence in the space sector is rising under the incoming Trump administration, amid expectations of increased defense spending and reduced bureaucratic barriers. This sentiment was evident at the Deutsche Bank Global Space Summit in New York, where industry leaders discussed potential investment opportunities. Elon Musk's influence on Trump's space policies is considered a significant factor, with companies like RocketLab and Planet Labs witnessing stock increases following the election.
Meanwhile, a leading manufacturer of drones - Uncrewed Aircraft Systems, Unmanned Aerial Vehicles, Loitering Munition Systems, and Unmanned Ground Vehicle, AeroVironment's announcement of a $4.1 billion acquisition of BlueHalo marks a significant industry development, aiming to enhance AeroVironment’s capabilities in defense and space technologies. This acquisition reflects a broader trend of consolidation, as companies seek to strengthen their market positions and leverage synergies in the growing space market. BlueHalo's expertise in advanced engineering solutions for national security and critical missions is expected to complement AeroVironment's existing portfolio.
Parachute drop test of Inversion’s technology demonstration capsule. (Credit: Inversion)
Inversion Space, a company developing space-based vehicles for on-demand cargo delivery, raised $44 million in a Series A funding round. The round was co-led by Spark Capital and Adjacent, with participation from Lockheed Martin Ventures, Kindred Ventures, and Y Combinator. This brings Inversion's total funding to $54 million. The funds will be used to develop Arc, a next-generation autonomous re-entry vehicle designed to deliver cargo from orbit to specific locations on Earth. The company plans to scale operations, including hiring and facility expansion. In September, SpaceWERX, the innovation arm of the U.S. Space Force had selected Inversion for a Strategic Funding Increase (STRATFI) award in the amount of $71 million to develop the next generation of autonomous re-entry vehicles and enable precision delivery to any location on Earth in under an hour.
Anduril Industries secured a $99.7 million contract from the U.S. Space Force to modernize the Space Surveillance Network (SSN) using its Lattice platform. The five-year Indefinite Delivery Indefinite Quantity (IDIQ) contract aims to enhance space domain awareness and threat detection by replacing legacy systems with advanced AI-driven architecture. The project is part of the broader Space Domain Awareness Network (SDANet) initiative, with full deployment expected by the end of 2026.
The U.S. Space Force has also awarded Optimum Technologies (OpTech) a $4.5 million contract to develop an optical imaging payload for the Victus Surgo mission, scheduled for 2026. The Victus Surgo mission aims to demonstrate the rapid deployment and maneuverability of space assets under the U.S. Space Force's Tactically Responsive Space (TacRS) program. The mission will use Impulse Space's Mira vehicle to carry the commercial optical payload into geosynchronous transfer orbit (GTO), showcasing the ability to quickly inspect, characterize and address on-orbit threats such as space debris, hostile satellites, and other potential hazards in space. The contract is a Small Business Innovation Research (SBIR) agreement, and the equipment will be produced at OpTech's expanded facility in Sterling, Virginia.
Launch of the US Proliferated Warfigher Satellite Constellation Delayed to 2025 Due to Supply Chain Issues
The U.S. Space Development Agency (SDA) has revised its satellite deployment timeline for the first launch of its low Earth orbit constellation, Tranche 1 of the Proliferated Warfighter Space Architecture (PWSA) to March-April 2025, citing supply chain issues. These delays stem from difficulties in scaling up production of critical components such as optical terminals and specialized encryption devices, highlighting the challenges of transitioning to a more agile, networked constellation of smaller satellites. Despite optimism about meeting the revised timeline, recent setbacks have raised concerns about the SDA's ability to manage production setbacks and sustain progress in its mission to bolster advanced space capabilities. The SDA is working with lower-tier suppliers to address these bottlenecks.
Finnish Industry Consortium Partners with Lockheed Martin to Develop Military AI and Surveillance Technologies
A consortium led by ICEYE, a Finnish Earth observation company, will partner with Lockheed Martin to develop AI-powered target recognition technologies as well as Intelligence, Surveillance and Reconnaissance (ISR) capabilities for Finland's military. The consortium includes other key industry players such as Insta, Huld, DA-Group, and the Finnish Meteorological Institute as a supplier.
The collaboration brings together Lockheed Martin's automated target recognition (ATR) algorithms and ICEYE's synthetic aperture radar (SAR) imagery to support Finland's F-35 tactical aviation program. The initiative aims to speed up decision-making with near real-time intelligence and tackle AI-related cybersecurity challenges. In May, Lockheed Martin had expanded its long-standing partnership with Maxar to develop ATR algorithms and incorporate electro-optical satellite imagery into the F-35's advanced simulation platform.
Meanwhile, Lockheed Martin is working with the National Institute of Standards and Technology (NIST) to develop standards for measuring and certifying AI system resilience ICEYE recently secured $93 million in growth funding to enhance its SAR satellite operations, underscoring the critical role of cutting-edge technology in modern military strategy.
COMMERCIAL
Lunar Outpost Picks SpaceX's Starship for Moon Rover Delivery
Lunar Outpost has chosen SpaceX's Starship to deliver its Lunar Dawn rover, named Eagle, to the Moon. This decision is part of NASA's Lunar Terrain Vehicle (LTV) program, which aims to develop rovers for future Artemis missions. Lunar Outpost is one of three companies awarded contracts to mature their rover designs, with the goal of eventually delivering a rover to the Moon.
Lunar Outpost picked SpaceX's Starship to launch and land its rover on the lunar surface. (Credit: Lunar Outpost)
The partnership with SpaceX was driven by Starship's technological maturity and its ability to provide reliable lunar landings. The collaboration includes industry leaders like Leidos (which replaced Lockheed Martin in September as one of the partners), MDA Space, Goodyear, and General Motors, who are working together to refine the rover's design. The Lunar Dawn team has been actively testing the rover, including recent human factors testing with NASA astronauts.
While the exact launch schedule has not been disclosed, the contract marks a significant step towards establishing a sustainable human presence on the Moon. The success of this mission could pave the way for future lunar exploration and commercial opportunities.
ISRO's GSAT-N2 Communications Satellite Deployed by SpaceX
SpaceX successfully launched its first mission for the Indian Space Research Organisation (ISRO) on November 18, 2024, deploying the GSAT-N2 communications satellite into geosynchronous transfer orbit (GTO) using a Falcon 9 rocket. This marks a significant milestone as ISRO's commercial arm, New Space India Limited (NSIL), opted for SpaceX due to the satellite's weight exceeding the capacity of India's own launch vehicles. The GSAT-N2 satellite, weighing 4,700 kg, aims to enhance communication infrastructure across India, providing internet connectivity for remote areas and in-flight services.
A SpaceX Falcon 9 rocket launches the GSAT-N2 communications satellite for the Indian Space Research Organisation on Nov. 18, 2024. (Credit: SpaceX)
ESA Awards Funding to Four European Launch Startups
The European Space Agency (ESA) has awarded additional funding worth €44.22 million ($46.7 million) to four European launch startups through its "Boost!" program. The funding aims to support HyImpulse, Isar Aerospace, Orbex, and Rocket Factory Augsburg (RFA) in their efforts to test and develop their launch vehicles. ESA's Director of Space Transportation, Toni Tolker-Nielsen, emphasized the importance of these emerging commercial launch service providers and expressed interest in seeing their rockets deliver. The funding will help these companies advance their projects and contribute to Europe's future space access.
The RFA ONE rocket by Rocket Factory Augsburg. (Credit: RFA)
SPOTLIGHT
Perseverance Rover's Mars Findings: Organic or Inorganic Origins?
Last year, NASA's Perseverance rover had detected carbon-based molecules on Mars, sparking excitement and debate within the scientific community. The rover's advanced instrument, SHERLOC, identified these potential organics in Jezero Crater, an ancient lakebed, raising hopes for signs of past life.
However, recently scientists have proposed an alternative explanation: these signals could be from inorganic materials, such as phosphate and silicate defects. While the possibility of organic origins hasn't been ruled out, the findings underscore the need for laboratory analyses on Earth to conclusively determine the nature of these compounds1. This highlights the limitations of current rover-based techniques and the importance of future Mars Sample Return missions for definitive answers. The study is published in Science Advances.
NASA’s Perseverance Mars rover with the Ingenuity helicopter, seen here about 13 feet (3.9 meters) from the rover in this image taken April 6, 2021, the 46th Martian day, or sol, of the mission by the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) camera on the SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals) instrument, located at the end of the rover's long robotic arm. (Credit: NASA/JPL-Caltech/MSSS)
New Solar System Composition Estimates Address Longstanding Discrepancies
Recent research led by the Southwest Research Institute has redefined our understanding of the solar system's composition, suggesting higher levels of carbon, nitrogen, and oxygen than previously thought. By integrating compositional data from primitive bodies like Kuiper Belt objects, asteroids, and comets with new solar data sets, the team has developed revised ratios that align more closely with recent asteroid sample returns from JAXA's Hayabusa-2 and NASA's OSIRIS-REx missions. These findings provide testable predictions for future helioseismology, solar neutrino, and cosmochemical measurements. Researchers suggest the revised chemical estimates align with recent solar data and may resolve the mismatch between spectroscopy, which examines the sun’s outer atmosphere, and helioseismology, which studies sound waves within the sun.
The study successfully reproduces the compositions of large Kuiper Belt objects and carbonaceous chondrite meteorites, enhancing our understanding of the primordial solar nebula's chemistry and the formation of numerous solar system bodies. Additionally, new measurements of solar neutrinos and solar wind composition from NASA's Genesis mission have been incorporated, offering a firmer basis for understanding element abundances in giant planet atmospheres and future exoplanet studies. The study is published in The Astrophysical Journal.
DESI Study Confirms Einstein's Theory of Gravity Over Billions of Years
Researchers using the Dark Energy Spectroscopic Instrument (DESI), have provided the most precise test to date of gravity at very large scales, confirming Einstein's theory of general relativity over 11 billion years of cosmic history. The study, involving over 900 researchers from 70 institutions, mapped the clustering of nearly 6 million galaxies and quasars, revealing that gravity behaves as predicted by Einstein. This validation supports our leading model of the universe and limits alternative theories of modified gravity, which have been proposed to explain the accelerating expansion of the universe typically attributed to dark energy.
This simulation illustrates how varying gravitational forces influence the observed positions of galaxies, altering their clustering patterns in galaxy maps. By comparing these observed patterns with those predicted by different gravitational models, DESI researchers can test the accuracy of gravity on a cosmic scale. (Credit: Claire Lamman and Michael Rashkovetskyi / DESI collaboration)
DESI, mounted on Kitt Peak National Observatory’s Mayall 4-meter Telescope, in Arizona (U.S.), features 5,000 robotic eyes and is in the fourth year of a five-year survey, aiming to observe about 40 million galaxies and quasars.
DESI observes the sky from the Mayall Telescope, shown here during the 2023 Geminid meteor shower. (Credit: KPNO/NOIRLab/NSF/AURA/R. Sparks)
Additionally, DESI's results offer new upper limits on the mass of neutrinos, narrowing the window for their masses and providing insights into the fundamental particles that make up our universe. The findings underscore the importance of large-scale cosmic observations in testing and refining our understanding of gravity and dark energy. "The DESI findings are detailed in multiple papers published on the arXiv research repository.
Study Reveals Unexpected Behavior in Early Supermassive Black Holes
A recent study led by researchers at the National Institute for Astrophysics (INAF) in Rome has offered new insights into the formation of supermassive black holes in the early universe. Published in the Astronomy & Astrophysics journal, the research analyzed X-ray emissions from 21 distant quasars.
The analysis of X-ray emissions revealed unexpected behavior in supermassive black holes at the centers of quasars. A connection was found between the shape of X-ray emissions and the speed of matter ejected by quasars. Wind speeds, reaching thousands of kilometers per second, were linked to the gas temperature in the corona, the X-ray-emitting region closest to the black hole. Low-energy X-ray emissions (cooler corona) showed faster winds, indicating a rapid growth phase beyond the Eddington limit, known as "super-Eddington." The Eddington Limit is the maximum luminosity a body can achieve when the outward pressure of radiation balances the inward pull of gravity. In contrast, higher-energy X-ray emissions (hotter corona) exhibited slower winds.
This artist’s impression shows a rapidly spinning supermassive black hole with an accretion disc made of material from a Sun-like star torn apart by tidal forces. Shocks and heat from accretion caused a burst of light, similar to a supernova. (Credit: ESO, ESA/Hubble, M. Kornmesser/N. Bartmann)
The study focused on quasars dating back to the universe's first billion years, a period when supermassive black holes were thought to grow too quickly to align with existing models. The researchers found that these black holes exhibited more intense growth phases than previously anticipated, driven by accretion of surrounding material. This challenges current theories of black hole formation and growth, which typically require longer timescales for such massive black holes to develop.
Hubble Observes Milky Way Stripping Gas from Large Magellanic Cloud
In a recent study, the Hubble Space Telescope has provided evidence that the Milky Way has stripped its galactic neighbor, the Large Magellanic Cloud (LMC), of a significant portion of its gas. This interaction has left the LMC with a much smaller gas halo compared to other galaxies of similar mass. Despite this loss, the LMC continues to form new stars, thanks to a compact bubble of remaining gas. Researchers used Hubble's ultraviolet capabilities to observe the LMC's halo and found that it retains about 10% of its original gas. This discovery offers insights into the dynamics of galactic interactions and the resilience of smaller galaxies in the face of gravitational bullying by larger neighbors. The study is yet to be published in The Astrophysical Journal Letters but a preprint can be found here.
This artist's concept shows the Large Magellanic Cloud, or LMC, in the foreground as it passes through the gaseous halo of the much more massive Milky Way galaxy. The encounter has blown away most of the spherical halo of gas that surrounds the LMC, as illustrated by the trailing gas stream reminiscent of a comet's tail. Still, a compact halo remains, and scientists do not expect this residual halo to be lost. The team surveyed the halo by using the background light of 28 quasars, an exceptionally bright type of active galactic nucleus that shines across the universe like a lighthouse beacon. Their light allows scientists to "see" the intervening halo gas indirectly through the absorption of the background light. The lines represent the Hubble Space Telescope's view from its orbit around Earth to the distant quasars through the LMC's gas. (Credit: NASA, ESA, Ralf Crawford (STScI))
Despatch Out. 👽🛸