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On this day in space! Aug. 25, 1997: NASA launches Advanced Composition Explorer to track solar wind and so much more
By Hanneke Weitering Published
NASA's Advanced Composition Explorer, or ACE satellite, studies energetic particles traveling through space.

Polish startup Ares Shield hired to protect data center satellites with high-power microwave weapons
By Mike Wall Published
Florida-based Lonestar Data Holdings has contracted Polish startup Ares Shield to provide protection for its off-Earth data centers, in a deal worth up to $6 million.

NASA satellites ace world's 1st 'lost-in-space' GPS-free navigation experiment
By Elizabeth Howell Published
No GPS? No problem. A team of NASA satellites are extending their stay in space after successfully proving out navigation by other means.

SpaceX sets rocket-reuse record on 100th Falcon 9 launch of the year (video)
By Mike Wall Last updated
SpaceX set a new rocket-reuse record early Tuesday morning (Aug. 25), on its 100th Falcon 9 flight of the year.

Watch 2 astronauts replace failed ISS antenna during spacewalk today
By Mike Wall Published
NASA astronaut Anil Menon and France's Sophie Adenot will conduct a spacewalk today (Aug. 25) to replace a space-to-ground-antenna on the International Space Station. Here's how to watch live.

Goodbye, Falcon 9: SpaceX planning to retire workhorse launcher when Starship is up and running
By Josh Dinner Published
SpaceX plans to retire its workhorse Falcon 9 once it gets the next-gen Starship megarocket online. But what will removing one of the most-flown rockets in history do to the current launch market?

On this day in space! Aug. 23, 1961: Ranger 1's botched space launch
By Hanneke Weitering Published
On Aug. 23, 1961, NASA launched the Ranger 1 robotic spacecraft on a precursor mission to test new technologies for later moon missions.

Bad weather delays launch of China's historic Chang'e 7 mission to moon's south pole
By Mike Wall Published
China has delayed its ambitious ice-hunting Chang'e 7 mission to the moon's south pole due to a brewing storm near the launch site. A new target date has not been announced.

How will NASA's astronaut training hub change with commercial space stations?
By Elizabeth Howell Published
A tour of Johnson Space Center in Houston shows how NASA and private industry are already working together on the future of human spaceflight.

SpaceX sends 27 Starlink satellites to orbit on 100th Falcon rocket launch of the year (video, photos)
By Mike Wall Published
SpaceX launched 27 Starlink satellites from California early this morning (Aug. 22), on the 100th mission of the year for the company's Falcon rocket family.
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