Astronaut Marsha Ivins Leaves NASA

NASA astronaut Marsha Ivins, a veteran of five spaceflights, has retired from the agency.

NASA Airborne Observatory’s Past Unearthed

Fifteen years after its final flight, veterans of the Kuiper Airborne Observatory, or KAO, gathered at…

Before the Winter

This mosaic of images shows the soil in front of NASA's Mars Exploration Rover Spirit after…

A busy 2011 with Ariane 5 being joined by Soyuz and Vega at the Spaceport

Building on its highly successful performance in 2011, Arianespace plans a total of 12 missions in…

A busy 2011 with Ariane 5 being joined by Soyuz and Vega at the Spaceport

Building on its highly successful performance in 2011, Arianespace plans a total of 12 missions in…

A busy 2011 with Ariane 5 being joined by Soyuz and Vega at the Spaceport

Building on its highly successful performance in 2011, Arianespace plans a total of 12 missions in…

A busy 2011 with Ariane 5 being joined by Soyuz and Vega at the Spaceport

Building on its highly successful performance in 2011, Arianespace plans a total of 12 missions in…

Ariane 5 launch with Yahsat 1A and Intelsat New Dawn

The mission pace is being maintained at Europe's Spaceport, where elements of the Ariane 5 launcher…

A busy 2011 with Ariane 5 being joined by Soyuz and Vega at the Spaceport

Building on its highly successful performance in 2011, Arianespace plans a total of 12 missions in…

Modifications to External Tank Stringers to Begin Tuesday

Technicians at NASA’s Kennedy Space Center in Florida will begin modifications to 34 support beams, called…