December 2025

Uncategorized
247th American Astronomical Society (AAS) Meeting SATURDAY, JANUARY 3 8:30AM – 6:0PM  NASA’s Exoplanet Exploration Program Analysis Group (ExoPAG) 301DJosh Pepper, Dawn Gelino, Karl Stapelfeldt, Nick Siegler, Jessie Christiansen SUNDAY, JANUARY 4 8:30AM – 12:15PM  NASA’s Exoplanet Exploration Program Analysis Group (ExoPAG) 301D9:00AM – 2:00PMNASA’
Posted December 31, 2025
Uncategorized
247th American Astronomical Society (AAS) Meeting Join NASA in the Exhibit Hall (Booth #401) for Hyperwall Storytelling by NASA experts. Full Hyperwall Agenda below.
Posted December 31, 2025
Curiosity (Rover)
Mars
Team members working with NASA’s Curiosity Mars rover created this “postcard” by commanding the rover to take images at two times of day on Nov. 18, 2025, spanning periods that occurred on both the 4,722nd and 4,723rd Martian days, or sols, of the mission. The panoramas were captured at 4:15 p.m. on Sol 4,722 and […]
Posted December 30, 2025
Human Health and Performance
Microorganisms and Spaceflight Spaceflight poses a risk of adverse health effects due to the interactions between microorganisms, their hosts, and their environment.
Posted December 30, 2025
Chandra X-Ray Observatory
Astrophysics
Galaxies
Galaxy clusters
Marshall Astrophysics
Marshall Space Flight Center
The Universe
Celebrate the New Year with the “Champagne Cluster,” a galaxy cluster seen in this new image from NASA’s Chandra X-ray Observatory and optical telescopes. Astronomers discovered this galaxy cluster Dec. 31, 2020.
Posted December 30, 2025
Earth Science
An Intertwined History: The Earth Observer and EOS The Earth Observer, a newsletter issued for nearly 37 years, will release its last online content at the close of 2025. This newsletter evolved in parallel with NASA’s Earth Observing System (EOS). It is almost impossible to speak of this newsletter without mentioning EOS.
Posted December 30, 2025
Earth Science
Introduction Launched into the night sky more than 26 years ago, on Dec.
Posted December 30, 2025
Earth Science
It is with a heavy heart that I announce that NASA Earth Science Communications has directed The Earth Observer to conduct an orderly shutdown of the publication. No new content will be published after Dec. 31, 2025. While the sunset of The Earth Observer is bittersweet for our team, the good news is that all […]
Posted December 30, 2025
Earth Science
Introduction The Clouds and the Earth’s Radiant Energy System (CERES) was initially designed in the late-1980s and early-1990s as a facility instrument for NASA’s Earth Observing System (EOS). Since its inception, NASA’s Langley Research Center (LaRC) has led this effort.
Posted December 30, 2025
Humans in Space
International Space Station (ISS)
ISS Research
2025 marks another year pushing the boundaries of scientific research aboard the International Space Station. This past year, over 750 investigations were conducted aboard the space station, supported by crewed missions and resupply vehicles delivering essential cargo and experiments to the orbiting laboratory.
Posted December 29, 2025
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