JAXA, NASA test solar sail technology
Posted: Tue, Aug 10 8:48 PM ET (0048 GMT)
In a pair of recent, independent tests, Japanese and American teams have successfully tested systems that could be used to deploy giant solar sails. On...

NASA to go ahead with robotic Hubble repair
Posted: Tue, Aug 10 10:43 AM ET (1443 GMT)
NASA administrator Sean O'Keefe announced Monday that the agency would move ahead with plans to carry out a robotic repair mission to the Hubble...

X Prize contender's rocket fails
Posted: Mon, Aug 9 12:12 PM ET (1612 GMT)
A rocket built by a team contending for the Ansari X Prize failed seconds after liftoff Sunday, dealing the effort a major setback in its...

Report: Pluto mission to be delayed or fly with less power
Updated: Sun, Aug 8 10:49 AM ET (1449 GMT)
Originally Posted: Sun, Aug 8 10:15 AM ET (1415 GMT)
Delays in the manufacture of a power source for NASA's New Horizons mission to Pluto will require the agency to decide between delaying the...

Cassini detects lightning, radiation belt at Saturn
Posted: Sun, Aug 8 10:06 AM ET (1406 GMT)
NASA's Cassini spacecraft has observed lightning in the atmosphere of Saturn and also discovered a new radiation belt surrounding the planet, scientists announced Thursday....

Hubble instrument shuts down
Posted: Sat, Aug 7 9:52 AM ET (1352 GMT)
One of four instruments on the Hubble Space Telescope has shut down because of a technical problem, NASA announced late Friday. The Space Telescope Imaging...

Satellite problem could jeopardize PanAmSat sale
Posted: Fri, Aug 6 8:58 AM ET (1258 GMT)
A problem announced Thursday with a PanAmSat satellite could threaten the planned sale of the satellite operator to private equity firms. PanAmSat announced that a...

NASA to keep TRMM mission alive
Posted: Thu, Aug 5 9:18 PM ET (0118 GMT)
In an about-face, NASA announced late Thursday that it would continue operating an earth sciences spacecraft that the agency said last month would be...

Da Vinci Project announces X Prize launch
Updated: Thu, Aug 5 6:14 PM ET (2214 GMT)
Originally Posted: Thu, Aug 5 1:54 PM ET (1754 GMT)
The da Vinci Project, a Canadian entrant into the Ansari X Prize competition, announced Thursday that it plans to make the first of two X...

Mars rovers suffer glitches
Posted: Thu, Aug 5 1:29 PM ET (1729 GMT)
NASA's twin Mars Exploration Rovers, operating on the surface of the Red Planet for over six months, are starting to encounter problems that may...