Space Exploration

The decision to send Boeing's Starliner capsule home uncrewed from the ISS was driven in part by time constraints, according to NASA astronaut Butch Wilmore.

A 1.2% scale model of SpaceX's Starship Super Heavy rocket underwent NASA wind tunnel testing, during which high-speed forced air simulated varying flight conditions.

SpaceX's latest Starlink satellite launch lifted off from Vandenberg Space Force Base on Sept. 12, adding to a constellation of more than 6,300 operational satellites.

JUICE successfully identified water and the building blocks of life in Earth's atmosphere. In doing so, the probe headed for Jupiter's moons confirmed that its instruments are working properly.

Find out the latest about SpaceX's private Polaris Dawn spacewalk mission for billionaire Jared Isaacman.

The private Polaris Dawn crew notched another milestone on Thursday (Sept. 12), beaming photos home using SpaceX's Starlink broadband satellites.

Polaris Dawn astronaut Sarah Gillis released a new music video from space while playing violin inside the mission's Crew Dragon spacecraft.

On Sept. 13, 2007, Japan launched the Kaguya spacecraft on a mission to the moon.

Boeing Starliner's historic first mission with astronauts did not turn out as planned. Starliner's 2 NASA astronauts will share their experiences from the ISS today (Sept. 13).

SpaceX's Starship likely won't be able to fly again until late November at the earliest, because the FAA and partner agencies need more time for licensing reviews.