Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam Announcements More Archives Conference Schedules Style Guide 27 min read Terra: The End of An Era Introduction Launched into the night sky nearly 26 years ago, on December 19, 1999, from Vandenberg Air Force [...]
Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam Announcements More Archives Conference Schedules Style Guide 14 min read The Final Earth Observer Editor’s Corner: October–December 2025 It is with a heavy heart that I announce that NASA Earth Science Communications has directed [...]
Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam Announcements More Archives Conference Schedules Style Guide 42 min read The State of CERES: Updates and Highlights Introduction The Clouds and the Earth’s Radiant Energy System (CERES) was initially designed in the late-1980s and [...]
1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA astronaut Zena Cardman processes bone cell samples inside the Kibo laboratory module’s Life Science Glovebox. NASA 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, [...]
NASA astronaut and Expedition 72 Flight Engineer Nichole Ayers is pictured during a spacewalk to upgrade the orbital outpost’s power generation system and relocate a communications antenna.Credit: NASA NASA astronauts will conduct a pair of spacewalks in January outside of the International Space Station to prepare for the installation of a roll-out solar array and [...]
X-ray: NASA/CXC/SAO; Infrared: NASA/ESA/CSA/STScI/Webb; Image Processing: NASA/CXC/SAO/L. Frattare Mid-infrared data from NASA’s James Webb Space Telescope (in white, gray, and red) and X-ray data from NASA’s Chandra X-ray Observatory (in blue) come together in this photo of colliding spiral galaxies released on Dec. 1, 2025. The pair grazed one another millions of years ago; billions [...]
3 Min Read I Am Artemis: Jen Madsen and Trey Perryman Artemis II Orion Mission Evaluation Room Leads Jen Madsen and Trey Perryman stand in the Orion Mission Evaluation Room in the Mission Control Center at NASA's Johnson Space Center in Houston. Credits: NASA/Rad Sinyak Listen to this audio excerpt from Jen Madsen and [...]
Photo of the Day Jewels don't shine this bright -- only stars do. And almost every spot in this jewel-box of an image from the Hubble Space Telescope is a star. Now, some stars are more red than our Sun, and some more blue -- but all of them are much farther away. Although [...]
NASA/Zena Cardman In this Oct. 20, 2025, photo, tiny ball bearings surround a larger central bearing during the Fluid Particles experiment, conducted inside the Microgravity Science Glovebox (MSG) aboard the International Space Station’s Destiny laboratory module. A bulk container installed in the MSG, filled with viscous fluid and embedded particles, is subjected to oscillating frequencies [...]
Photo of the Day A star forming region cataloged as NGC 2264, this beautiful but complex arrangement of interstellar gas and dust is about 2,700 light-years distant in the faint but fanciful constellation Monoceros, the Unicorn. Seen toward the celestial equator and near the plane of our Milky Way galaxy, the seasonal skyscape mixes [...]
