NASA的MAVEN探测器观测到的碳通量与模型相符，比氧离子低1到2个数量级。
NASA
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At-Home Astronomers Help Discover a New, Unique Exoplanet
Amateur astronomers sifting through NASA’s public data uncovered a long-orbit gas giant that could help scientists understand how these planets form.
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Measuring Carbon Ion Loss from the Martian Atmosphere
The flux, observed with NASA’s MAVEN spacecraft, is in line with models and 1–2 orders of magnitude lower than that of oxygen ions.
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Scientists Turn Back Time to Track Methane Emissions on Mars
Period spikes of methane on Mars could originate inside Gale crater, where NASA’s Curiosity rover is currently exploring.s
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Machine Learning Algorithms Help Scientists Explore Mars
Researchers applied machine learning algorithms to several distinct chemical compositions of Mars and suggest that these algorithms could be a powerful tool to map the planet’s surface on a large scale.
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The Perspective from Space Unlocks the Amazon Water Cycle
Satellite imaging and remote sensing offer unique insights into the Amazon’s complex hydrology. A new review summarizes decades of findings and charts a path forward for new remote sensing missions.
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Atmospheric Rivers Spur High-Tide Floods on U.S. West Coast
Researchers analyzed 36 years of data to understand how atmospheric rivers and other factors drive chronic coastal flooding.
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Can NASA’s Gravity Satellites Detect Motions in Earth’s Core?
Measurements of our planet’s gravitational field could expose processes in the fluid outer core—if scientists can decipher the signals.
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NASA Prepares Its Artemis Gateway to Orbit the Moon
Throughout its anticipated 15-year tour of duty, the Gateway will serve as a station for astronauts and lunar landers—and enable new scientific discovery.
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Scientists Plan a Home Away from Home for Mars Samples
The core tubes being collected by the Perseverance rover won’t arrive for years, but NASA and the European Space Agency are outlining needs for a facility to assess their safety and store and distribute them.