The idea behind a communications satellite is simple: send a signal into space, and send it…
Category: NASA Image of the Day
Testing at the Space Power Facility
The Centaur Standard Shroud at Glenn Research Center's Space Power Facility, Plum Brook Station, protects spacecraft…
‘Island Universe’ in the Coma Cluster
A long-exposure Hubble Space Telescope image shows a majestic face-on spiral galaxy located deep within the…
Inspiration on Parade
Astronaut Leland Melvin waved to the crowds from the NASA Glenn Research Center float during the…
Great Ball of Fire
On August 1, 2010, almost the entire Earth-facing side of the sun erupted in a tumult…
North Polar Layers of Mars
The north polar layered deposits are layers of dusty ice up to 2 miles thick and…
Tank Prep
In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers prepare External Tank-138,…
Smoke over Western Russia
Hundreds of fires burned across western Russia on August 2, 2010, but it is the smoke…
In Motion
This gimbal rig, formally known as the MASTIF, or Multiple Axis Space Test Inertia Facility, was…
Tweetup at HQ
NASA astronaut TJ Creamer talks about his experience in space during a "Tweetup" at NASA Headquarters,…