Pluto launch postponed
Updated: Tue, Jan 17 6:12 PM ET (2312 GMT)
Originally Posted: Tue, Jan 17 5:23 PM ET (2223 GMT)
The launch of NASA's New Horizons mission to Pluto was postponed Tuesday because of gusty winds. The Atlas 5 rocket carrying the spacecraft was...

Galileo satellite sends first signals
Posted: Tue, Jan 17 7:40 AM ET (1240 GMT)
The first experimental satellite in the European Galileo satellite navigation system has transmitted its first signals, a key milestone for the project. ESA officials said...

New Horizons ready for launch
Posted: Mon, Jan 16 7:10 AM ET (1210 GMT)
All systems are go for Tuesday's launch of NASA's New Horizons mission to the distant planet Pluto, project officials said Sunday. An Atlas...

Stardust returns to Earth
Posted: Sun, Jan 15 6:24 PM ET (2324 GMT)
The capsule from NASA's Stardust spacecraft, carrying dust collected from a distant comet, parachuted to a safe landing in the Utah desert early Sunday....

ORBIMAGE completes acquisition of Space Imaging
Posted: Fri, Jan 13 7:10 AM ET (1210 GMT)
Commercial remote sensing company ORBIMAGE announced Thursday that it has completed its acquisition of rival company Space Imaging, and that the merged company will operate...

Boeing lands large satellite contract
Posted: Thu, Jan 12 7:22 AM ET (1222 GMT)
Boeing's satellite division has won its biggest satellite contract in nine years, signing a deal to build three mobile communications satellites. Boeing said it...

Research challenges dark energy, cosmological constant
Posted: Thu, Jan 12 7:05 AM ET (1205 GMT)
A new study suggests that "dark energy", the mysterious energy that is causing the expansion of the universe to accelerate, may have been less powerful...

Boeing launch strike continues
Posted: Wed, Jan 11 6:00 AM ET (1100 GMT)
A strike by 1,500 Boeing employees involved with the Delta launch vehicle program continues, with recent talks unable to bring both sides closer to...

Hubble spies close companion to Polaris
Posted: Wed, Jan 11 5:52 AM ET (1052 GMT)
Astronomers using the Hubble Space Telescope said this week that they have seen for the first time a small companion star to Polaris. The existence...

Astronomers prove existence of black hole event horizon
Posted: Tue, Jan 10 7:36 AM ET (1236 GMT)
Astronomers said Monday that they have proven the existence of the event horizon, the "point of no return" that surrounds black holes. An MIT and...