The private Polaris Dawn astronauts keep notching milestones in Earth orbit. The four-person Polaris Dawn mission launched aboard a SpaceX Crew Dragon capsule early Tuesday morning (Sept. 10). Later that day, the astronauts got farther from Earth — 870 miles (1,400.7 kilometers) — than any crewed...

Polaris Dawn astronaut Sarah Gillis, a violinist, released a new music video from space this morning. Just yesterday (Sept. 12), Gillis was one of two Polaris Dawn astronauts to perform a historic spacewalk, the world’s first commercial extravehicular activity, or EVA. During the one-hour and...

SpaceX’s Starship will be grounded for a while longer yet. Starship — the biggest and most powerful rocket ever built — flew for the fourth time in June, and SpaceX has been gearing up for flight number five ever since. But that test mission is probably still at least 2.5 months away...

The private Polaris Dawn crew called home from space to share their historic mission with two nonprofit organizations close to their hearts. Polaris Dawn, funded and commanded by billionaire entrepreneur Jared Isaacman, lifted off early Tuesday morning (Sept. 10) and has since accomplished the first...

Two private astronauts conducting the first commercial spacewalk did not so much float out of their spacecraft as they did “stand up.” Polaris Dawn crewmates Jared Isaacman and Sarah Gillis took turns emerging from the upper hatch of SpaceX’s Dragon spacecraft...

A NASA cubesat designed to search for the universe’s most powerful and violent explosions has successfully detected its first massive burst, space agency officials announced earlier this week. BurstCube, a shoebox-sized satellite placed into orbit in April to detect and study gamma-ray bursts...

Saturday, Sept. 14 marks NASA’s annual Observe the Moon Night, a worldwide event to promote lunar science and astronomy, celebrate cultural connections to the moon, and promote amateur lunar observations. On the day, NASA will be hosting a broadcast channel (all live streams available here), along...

Astronomers have gotten the first-ever detailed views of turbulent activity in a star other than our own sun. A time-lapse video released Wednesday (Sept. 11) shows enormous gas bubbles roiling on a nearby star called R Doradus, a red giant about 300 times bigger than our sun that lies roughly 180...

AST SpaceMobile’s first five commercial satellites have reached orbit. The huge spacecraft, called BlueBirds, lifted off today (Sept. 12) at 4:52 a.m. EDT (0852 GMT) atop a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station in Florida. The Falcon 9’s first stage returned to...