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Recycling parts for life on the Moon
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By NASA
NASA Science Live: Asteroid Bennu Originated from World with Ingredients and Conditions for Life
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By NASA
In this video frame, Jason Dworkin holds up a vial that contains part of the sample from asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) mission in 2023. Dworkin is the mission’s project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.Credit: NASA/James Tralie Studies of rock and dust from asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security–Regolith Explorer) spacecraft have revealed molecules that, on our planet, are key to life, as well as a history of saltwater that could have served as the “broth” for these compounds to interact and combine.
The findings do not show evidence for life itself, but they do suggest the conditions necessary for the emergence of life were widespread across the early solar system, increasing the odds life could have formed on other planets and moons.
“NASA’s OSIRIS-REx mission already is rewriting the textbook on what we understand about the beginnings of our solar system,” said Nicky Fox, associate administrator, Science Mission Directorate at NASA Headquarters in Washington. “Asteroids provide a time capsule into our home planet’s history, and Bennu’s samples are pivotal in our understanding of what ingredients in our solar system existed before life started on Earth.”
In research papers published Wednesday in the journals Nature and Nature Astronomy, scientists from NASA and other institutions shared results of the first in-depth analyses of the minerals and molecules in the Bennu samples, which OSIRIS-REx delivered to Earth in 2023.
Detailed in the Nature Astronomy paper, among the most compelling detections were amino acids – 14 of the 20 that life on Earth uses to make proteins – and all five nucleobases that life on Earth uses to store and transmit genetic instructions in more complex terrestrial biomolecules, such as DNA and RNA, including how to arrange amino acids into proteins.
Scientists also described exceptionally high abundances of ammonia in the Bennu samples. Ammonia is important to biology because it can react with formaldehyde, which also was detected in the samples, to form complex molecules, such as amino acids – given the right conditions. When amino acids link up into long chains, they make proteins, which go on to power nearly every biological function.
These building blocks for life detected in the Bennu samples have been found before in extraterrestrial rocks. However, identifying them in a pristine sample collected in space supports the idea that objects that formed far from the Sun could have been an important source of the raw precursor ingredients for life throughout the solar system.
“The clues we’re looking for are so minuscule and so easily destroyed or altered from exposure to Earth’s environment,” said Danny Glavin, a senior sample scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and co-lead author of the Nature Astronomy paper. “That’s why some of these new discoveries would not be possible without a sample-return mission, meticulous contamination-control measures, and careful curation and storage of this precious material from Bennu.”
While Glavin’s team analyzed the Bennu samples for hints of life-related compounds, their colleagues, led by Tim McCoy, curator of meteorites at the Smithsonian’s National Museum of Natural History in Washington, and Sara Russell, cosmic mineralogist at the Natural History Museum in London, looked for clues to the environment these molecules would have formed. Reporting in the journal Nature, scientists further describe evidence of an ancient environment well-suited to kickstart the chemistry of life.
Ranging from calcite to halite and sylvite, scientists identified traces of 11 minerals in the Bennu sample that form as water containing dissolved salts evaporates over long periods of time, leaving behind the salts as solid crystals.
Similar brines have been detected or suggested across the solar system, including at the dwarf planet Ceres and Saturn’s moon Enceladus.
Although scientists have previously detected several evaporites in meteorites that fall to Earth’s surface, they have never seen a complete set that preserves an evaporation process that could have lasted thousands of years or more. Some minerals found in Bennu, such as trona, were discovered for the first time in extraterrestrial samples.
“These papers really go hand in hand in trying to explain how life’s ingredients actually came together to make what we see on this aqueously altered asteroid,” said McCoy.
For all the answers the Bennu sample has provided, several questions remain. Many amino acids can be created in two mirror-image versions, like a pair of left and right hands. Life on Earth almost exclusively produces the left-handed variety, but the Bennu samples contain an equal mixture of both. This means that on early Earth, amino acids may have started out in an equal mixture, as well. The reason life “turned left” instead of right remains a mystery.
“OSIRIS-REx has been a highly successful mission,” said Jason Dworkin, OSIRIS-REx project scientist at NASA Goddard and co-lead author on the Nature Astronomy paper. “Data from OSIRIS-REx adds major brushstrokes to a picture of a solar system teeming with the potential for life. Why we, so far, only see life on Earth and not elsewhere, that’s the truly tantalizing question.”
NASA Goddard provided overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator. The university leads the science team and the mission’s science observation planning and data processing. Lockheed Martin Space in Littleton, Colorado, built the spacecraft and provided flight operations. NASA Goddard and KinetX Aerospace were responsible for navigating the OSIRIS-REx spacecraft. Curation for OSIRIS-REx takes place at NASA’s Johnson Space Center in Houston. International partnerships on this mission include the OSIRIS-REx Laser Altimeter instrument from CSA (Canadian Space Agency) and asteroid sample science collaboration with JAXA’s (Japan Aerospace Exploration Agency) Hayabusa2 mission. OSIRIS-REx is the third mission in NASA’s New Frontiers Program, managed by the agency’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington.
For more information on the OSIRIS-REx mission, visit:
https://www.nasa.gov/osiris-rex
Karen Fox / Molly Wasser
Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
Rani Gran
Goddard Space Flight Center, Greenbelt, Maryland
301-286-2483
rani.c.gran@nasa.gov
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Last Updated Jan 29, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) Asteroids Bennu Goddard Space Flight Center Science Mission Directorate
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By NASA
NASA/Bill Ingalls A NASA photographer captured the full “wolf” moon rising over the Lincoln Memorial and Memorial Bridge on Jan. 13, 2025.
The Maine Farmers’ Almanac began publishing Native American names for full moons in the 1930s. Over time, these names have become widely known and used. According to this almanac, the full moon in January is called the Wolf Moon, from the packs of wolves heard howling outside the villages amid the cold and deep snows of winter.
Get tips and guides on skywatching.
Image credit: NASA/Bill Ingalls
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By Space Force
Secretary Pete Hegseth was sworn in as the 29th Secretary of Defense.
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By NASA
Caption: As part of NASA’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, Intuitive Machines’ second delivery to the Moon will carry NASA technology demonstrations and science investigations on their Nova-C class lunar lander. Credit: Intuitive Machines For the second time, Intuitive Machines will launch a lunar lander to deliver NASA technology demonstrations and science investigations to the Moon for the benefit of all. Media accreditation is open for the IM-2 launch, part of NASA’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign to establish a long-term presence on the Moon.
The Intuitive Machines Nova-C class lunar lander will launch on a SpaceX Falcon 9 rocket and carry NASA science, technology demonstrations, and other commercial payloads to Mons Mouton, a lunar plateau near the Moon’s South Pole region. Liftoff is targeted for a multi-day launch window, which opens no earlier than late February, from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Media prelaunch and launch activities will take place at NASA Kennedy and are open to U.S. citizens and international media. U.S. media must apply by Wednesday, Feb. 12, and international media must apply by Wednesday, Feb. 5.
Media wishing to take part in person must apply for credentials at:
https://media.ksc.nasa.gov
Credentialed media will receive a confirmation email upon approval. NASA’s media accreditation policy is available online. For questions about accreditation or to request special logistical support, such as space for satellite trucks, tents, or electrical connections, please email by Wednesday, Feb. 12, to: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA Kennedy’s newsroom at: 321-867-2468.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitar entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
Among the items on its lander, the IM-2 mission will deliver one of the first on-site, or in-situ, demonstrations of resource utilization on the Moon, using a drill and mass spectrometer to measure the volatiles content of subsurface materials. Other technology instruments on this delivery will demonstrate a robust surface communications system and deploy a propulsive drone mobility solution.
Launching as a rideshare alongside the IM-2 delivery NASA’s Lunar Trailblazer spacecraft also will begin its journey to lunar orbit, where it will map the distribution of the different forms of water on the Moon.
A successful landing will help support the CLPS model for commercial payload deliveries to the lunar surface, as another step toward a sustainable lunar future. As a primary customer of CLPS, NASA is investing in lower-cost methods of Moon deliveries and is one of multiple customers for these flights.
NASA is working with several U.S. companies to deliver science and technology to the lunar surface through the agency’s CLPS initiative. This pool of companies may bid on task orders to deliver NASA payloads to the Moon. Contract awards cover end-to-end commercial payload delivery services, including payload integration, mission operations, launch from Earth, and landing on the surface of the Moon. These contracts are indefinite-delivery/indefinite-quantity contracts with a cumulative maximum value of $2.6 billion through 2028.
For more information about the agency’s Commercial Lunar Payload Services initiative, see:
https://www.nasa.gov/clps
-end-
Alise Fisher / Jasmine Hopkins
Headquarters, Washington
202-358-1600
alise.m.fisher@nasa.gov / jasmine.s.hopkins@nasa.gov
Natalia Riusech / Nilufar Ramji
Johnson Space Center, Houston
281-483-5111
natalia.s.riusech@nasa.gov / nilufar.ramji@nasa.gov
Antonia Jaramillo
Kennedy Space Center, Florida
321-867-2468
antonia.jaramillobotero@nasa.gov
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Last Updated Jan 24, 2025 LocationJohnson Space Center Related Terms
Missions Artemis Commercial Lunar Payload Services (CLPS) View the full article
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