Spacecraft confirms Mercury is shrinking
Posted: Fri, Jul 4 11:15 AM ET (1515 GMT)
Data collected by a NASA spacecraft as it flew past the innermost planet, Mercury, in January has confirmed that the planet is shrinking as it...

Instrument concerns accelerate Mars sample analysis plans
Posted: Thu, Jul 3 8:45 AM ET (1245 GMT)
The possibility of a short circuit in a key instrument on NASA's Mars Phoenix Lander has led scientists to accelerate the analysis of a...

Proton launches Russian military satellite
Posted: Sat, Jun 28 10:16 AM ET (1416 GMT)
A Russian Proton rocket launched a military satellite early Friday, the first Proton launch since a failure in March. The Proton K rocket lifted off...

Phoenix finds Earth-like soil
Posted: Sat, Jun 28 9:57 AM ET (1357 GMT)
The first chemical analysis of the soil at the landing site for NASA's Phoenix Mars Lander has revealed conditions not dissimilar to those of...

NASA upgrades Ares 5
Posted: Fri, Jun 27 7:29 AM ET (1129 GMT)
NASA has added more power to its proposed Ares 5 heavy-lift launch vehicle that will be used to send missions to the Moon as...

Impact may explain differences in Martian hemispheres
Posted: Fri, Jun 27 7:21 AM ET (1121 GMT)
The large differences in terrain between the northern and southern hemispheres of Mars can be explained by a giant impact that took place on the...

NASA lowers KSC job loss estimates
Posted: Wed, Jun 25 8:13 AM ET (1213 GMT)
The number of jobs at the Kennedy Space Center that will be lost once the shuttle is retired will be less than originally feared, agency...

Delta 2 launches Earth sciences satellite
Posted: Sat, Jun 21 1:09 AM ET (0509 GMT)
A Delta 2 rocket placed a US-French Earth sciences satellite into orbit early Friday. The Delta 2 7320-10 lifted off from Vandenberg Air...

Phoenix detects ice on Mars
Posted: Fri, Jun 20 7:00 AM ET (1100 GMT)
A light-colored material uncovered by NASA's Phoenix Mars Lander when it dug a trench into the Martian surface appears to be water ice,...

ORBCOMM satellites launched
Posted: Thu, Jun 19 2:29 PM ET (1829 GMT)
A Kosmos rocket lifted off early Thursday and placed six replacement ORBCOMM satellites into orbit. The Kosmos-3M rocket launched at 2:36 am EDT (...