Comets take the name of the discoverer, whether that be a human or an automated telescopic survey that robotically inspects ...

The sky brightens at dawn as clouds roll through the sky, seen from St. John's, Newfoundland and Labrador. Demi Moore on her ...

Residents of South-Central Pennsylvania witnessed a SpaceX capsule launch as part of the Polaris Dawn mission.

Tuesday morning’s launch of the Polaris Dawn mission from Kennedy Space Center was seen by many observers across the D.C.

The most ambitious private spaceflight to date was a total success—and it blazed a trail for others to follow.

The ringed planet reaches opposition, Mars slips past the open cluster M35, and the original Cepheid variable shines in the ...

People across the Washington D.C. region were treated to spectacular views of SpaceX's Falcon 9 rocket early Tuesday morning.

The historic SpaceX astronaut mission — which conducted the first-ever private spacewalk, among other achievements —returned ...

The SpaceX Polaris Dawn mission launch was visible above New Jersey and much of the East Coast on Tuesday morning.

Tech entrepreneur Jared Isaacman, along with a pair of SpaceX engineers and a former Air Force Thunderbirds pilot, launched before dawn aboard a SpaceX Falcon 9 rocket from Florida.