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In the quarter century that humans have lived and worked aboard the International Space Station, astronauts and visitors from around

Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features

Explore This SectionEarthEarth ObserverEditor’s CornerFeature ArticlesMeeting SummariesNewsScience in the NewsCalendarsIn MemoriamAnnouncementsMoreArchivesConference SchedulesStyle Guide 12 min readKeeping Up with PACE: Summary

Explore This SectionEarthEarth ObserverEditor’s CornerFeature ArticlesMeeting SummariesNewsScience in the NewsCalendarsIn MemoriamAnnouncementsMoreArchivesConference SchedulesStyle Guide 15 min readSentinels in the Sky: 50

The four astronauts set to fly around the Moon during NASA’s Artemis II test flight depart the Neil A. Armstrong

Explore This Section Perseverance Home Mission Overview Rover Components Mars Rock Samples Where is Perseverance? Ingenuity Mars Helicopter Mission Updates

From left to right, NASA astronauts Jessica Meir and Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos

NASA’s Johnson Space Center in Houston closed 2025 with major progress across human spaceflight, research, and exploration. From Artemis II

4 Min Read NASA’s Wideband Technology Demo Proves Space Missions are Free to Roam An artist’s concept of the Polylingual