Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 3 min [...]
In the quarter century that humans have lived and worked aboard the International Space Station, astronauts and visitors from around the world have celebrated countless holidays more than 250 miles above Earth while traveling 17,500 miles per hour. Crews have marked Thanksgiving, Christmas and Hanukkah, New Year’s, birthdays, and national holidays as they circle the [...]
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 15 min read Sentinels in the Sky: 50 Years of GOES Satellite Observations Introduction In an era where satellite observations of Earth are commonplace, it’s easy to [...]
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 12 min read Keeping Up with PACE: Summary of the 2025 PAC3 Meeting Introduction Launched in Feb. 2024, NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission is [...]
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 7 min read Sentinel-6B Extends Global Ocean Height Record Introduction On November 16, 2025, the Sentinel-6B satellite launched from Vandenberg Space Force Base (VSFB) in California. The [...]
NASA’s Artemis II Orion spacecraft with its launch abort system is stacked atop the agency’s SLS (Space Launch System) rocket in High Bay 3 of the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Monday, Oct. 20, 2025. The spacecraft will carry NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA [...]
These two galaxies are named NGC 4490 and NGC 4485, and they’re located about 24 million light-years away in the constellation Canes Venatici (The Hunting Dogs). They are the closest known interacting dwarf-dwarf galaxy system where astronomers have observed the interactions between them, as well as been able to resolve the stars within.ESA/Webb, NASA & [...]
12 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) In 2025, NASA’s Armstrong Flight Research Center in Edwards, California, advanced work across aeronautics, Earth science, exploration technologies, and emerging aviation systems, reinforcing its role as one of the agency’s primary test sites for aeronautics research. From early concept evaluations to full flight test [...]
The four astronauts set to fly around the Moon during NASA’s Artemis II test flight depart the Neil A. Armstrong Operations and Checkout Building at the agency’s Kennedy Space Center in Florida, during a dress rehearsal for launch day on Dec. 20, 2025. From left are CSA (Canadian Space Agency) astronaut Jeremy Hansen, NASA astronauts Victor Glover, Reid [...]
Explore This Section Perseverance Home Mission Overview Rover Components Mars Rock Samples Where is Perseverance? Ingenuity Mars Helicopter Mission Updates Science Overview Objectives Instruments Highlights Exploration Goals News and Features Multimedia Perseverance Raw Images Images Videos Audio More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter [...]
