Christian Davenport

The Starship program promises to help SpaceX, which has launched an unprecedented number of rockets, remain ahead of its rivals for government business.

The risky maneuver is a step toward SpaceX’s goal of full reusability for Starship, which is the world’s most powerful rocket, and is key to NASA’s plans to return to the moon.

In late September, the inspector general identified 588 replacement parts that were operating beyond their planned operational lifetimes.

The Polaris Dawn mission includes billionaire entrepreneur Jared Isaacman, who is expected to perform the first spacewalk by a private citizen in a live broadcast.

SpaceX's Polaris mission launched with a private crew aiming for a historic spacewalk and record altitude.

NASA and Boeing will begin to assess what went wrong with the spacecraft’s thrusters and try to determine whether Boeing will have to make design changes.

The Polaris Dawn mission is the first of three flights that Jared Isaacman has commissioned from SpaceX.

Sunita Williams and Barry Wilmore have been on their mission far longer than originally expected.

NASA says data will guide return of stuck astronauts, but past tragedies loom large

The astronauts on the Boeing test flight were supposed to stay on the International Space Station for eight days but could end up staying eight months.