Proton launches SES-6
Posted: Tue, Jun 4 7:21 AM ET (1121 GMT)
A Proton rocket launched a European communications satellite on Monday, using a longer but more efficient trajectory to place the satellite into orbit. The Proton-...

Lunar mascons linked to impacts
Posted: Sun, Jun 2 8:40 AM ET (1240 GMT)
Scientists have associated irregularities in the Moon's gravity field with impacts by asteroids and comets early in the Moon's history. In a paper...

Earth flyby asteroid has small moon
Posted: Sun, Jun 2 8:28 AM ET (1228 GMT)
An asteroid that passed several million kilometers from the Earth on Friday has its own small moon. Radar observations of asteroid 1998 QE2 by NASA'...

Radiation exposure on Mars missions could exceed safe limits
Posted: Fri, May 31 2:14 PM ET (1814 GMT)
Exposure to cosmic radiation on missions to Mars could exceed NASA's current limits for astronauts, scientists reported this week. Researchers used data collected by...

Planetary Resources to crowdfund space telescope
Posted: Thu, May 30 9:42 AM ET (1342 GMT)
Planetary Resources, a startup company that announced plans last year to prospect and eventually extract resources from near Earth asteroids, started a crowdfunding campaign Wednesday...

Soyuz brings new crew to ISS
Posted: Wed, May 29 6:38 AM ET (1038 GMT)
A Soyuz spacecraft carrying three new International Space Station crewmembers arrived at the station Tuesday night, less than six hours after launching from Kazakhstan. A...

Ecuadorian satellite may have collided with space debris
Posted: Sun, May 26 11:06 AM ET (1506 GMT)
The first satellite launched by the South American nation of Ecuador may have collided with and been damaged by debris associated with a Soviet-era...

Delta launches WGS-5 satellite
Posted: Sat, May 25 11:27 AM ET (1527 GMT)
A Delta 4 rocket successfully launched the fifth in a series of military communications satellites on Friday evening. The Delta 4 Medium-Plus (5,4)...

GOES weather satellite malfunctions
Posted: Fri, May 24 10:53 AM ET (1453 GMT)
A geostationary weather satellite that provides images and other meteorological data for the US malfunctioned this week, and an on-orbit spare has been activated....

Technical glitch delays Delta 4 launch
Posted: Fri, May 24 10:44 AM ET (1444 GMT)
A technical problem postponed Thursday's scheduled launch of a military communications satellite on a Delta 4 rocket by 24 hours. The Delta 4 Medium+ (...