
Launched on Dec. 18, 1999, Terra's five onboard instruments began science operations in February 2000.

TRMM is a mission of NASA and the Japan Aerospace Exploration Agency.

The TOPEX/Poseidon satellite monitored the movement of Earth's oceans.

SORCE is a NASA-sponsored satellite mission providing measurements of incoming X-ray, ultraviolet, visible, near infrared and total solar radiation.

APOD Science APOD APOD: 2010 January 7 – The… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…

Astronomers have long known that the supermassive black hole at the center of the Milky Way Galaxy, known as Sagittarius…

E-1152These employees and this equipment supported the flight of the NACA D-558-II Skyrocket at the High-Speed Flight Station at South…

These employees and this equipment supported the flight of the NACA D-558-II Skyrocket at the High-Speed Flight Station at South…

APOD Science APOD APOD: 2010 January 6 – The… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…

Evidence from NASA's Chandra X-ray Observatory and the Magellan telescopes suggest a star was torn apart by an intermediate-mass black…