Explore This SectionEarthEarth ObserverEditor’s CornerFeature ArticlesMeeting SummariesNewsScience in the NewsCalendarsIn MemoriamAnnouncementsMoreArchivesConference SchedulesStyle Guide 13 min read The Earth Observer Editor’s Corner: July–September 2025 NOTE TO READERS: After more than three decades associated with or directly employed by NASA, Steve Platnick [GSFC—Deputy Director for Atmospheres, Earth Sciences Division] stepped down effective August 8, 2025. Steve began [...]

Explore This SectionEarthEarth ObserverEditor’s CornerFeature ArticlesMeeting SummariesNewsScience in the NewsCalendarsIn MemoriamAnnouncementsMoreArchivesConference SchedulesStyle Guide 21 min read Summary of the 11th ABoVE Science Team Meeting Introduction The NASA Arctic–Boreal Vulnerability Experiment (ABoVE) is a large-scale ecological study in the northern regions of North America (Alaska and western Canada) that was developed to understand environmental changes in [...]

The Artemis I SLS (Space Launch System) rocket and Orion spacecraft is pictured in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida before rollout to launch pad 39B, in March 2022.Credit: NASA/Frank Michaux Media are invited to see NASA’s fully assembled Artemis II SLS (Space Launch System) rocket and Orion spacecraft in [...]

Earth (ESD) Earth Explore Explore Earth Home Agriculture Air Quality Climate Change Freshwater Life on Earth Severe Storms Snow and Ice The Global Ocean Science at Work Earth Science at Work Technology and Innovation Powering Business Multimedia Image Collections Videos Data For Researchers About Us 5 Min Read NASA Data, Trainings Help Uruguay Navigate [...]

This animation depicts water disappearing over time in the Martian river valley Neretva Vallis, where NASA’s Perseverance Mars takes the rock sample named “Sapphire Canyon” from a rock called “Cheyava Falls,” which was found in the “Bright Angel” formation. Credit: NASA Lee este comunicado de prensa en español aquí. A sample collected by NASA’s Perseverance [...]

Flight Engineer Joe Acaba works in the U.S. Destiny laboratory module on the International Space Station, setting up hardware for the Zero Boil-Off Tank (ZBOT) experiment.Joe Acaba Space missions rely on cryogenic fluids — extremely cold liquids like liquid hydrogen and oxygen — for both propulsion and life support systems. These fuels must be kept [...]

NASA/Jonny Kim Dinnertime fare on the International Space Station takes center stage in this Aug. 15, 2025, photo. One tray features shrimp cocktail on whole grain wheat crackers, while the other holds sushi made with seaweed, Spam, tuna, and rice. Both trays are secured with Velcro strips to keep them stable inside the Unity module’s [...]

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4 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) What Would It Take to Say We Found Life? We call this the podium test. What would it take for you personally to confidently stand up in front of an international audience and make that claim? When you put it in that way, I [...]