The San Antonio Missions National Historical Park closed Wednesday morning on the first day of a partial federal government shutdown, though the leader of a park friends' group said it's open with ...

Prior to Polaris Dawn, Isaacman was the only member of the four Polaris Dawn crew to have been to outer space before. The mission, which Isaacman funded with SpaceX, was filled with landmark moments, ...

On November 2, 2000, the International Space Station welcomed its first long-term residents: NASA astronaut Bill Shepherd and ...

We wanted to show space agencies that were already planning three-year missions to Mars what they were overlooking. This article was originally published at The Conversation. The publication ...