Proton launch of EchoStar-21 delayed
Posted: Sat, Dec 31 10:49 AM ET (1549 GMT)
The latest delay in the Proton launch of EchoStar 21 is not related to an earlier problem with the rocket. International Launch Services confirmed Wednesday...

NASA chief scientist departs
Posted: Sat, Dec 31 10:48 AM ET (1548 GMT)
NASA's chief scientist is leaving the agency after more than three years on the job. Ellen Stofan left NASA this month "for new adventures,"...

Astronomer Vera Rubin passes away
Posted: Sat, Dec 31 10:47 AM ET (1547 GMT)
Vera Rubin, a pioneering astronomer who discovered evidence for the existence of dark matter, died Dec. 25. Rubin, 88, spent much of her career at...

Blue Origin conducts New Shepard test flight
Posted: Tue, Jun 21 9:40 AM ET (1340 GMT)
Blue Origin launched its New Shepard suborbital vehicle on its fourth consecutive successful flight June 19. The vehicle lifted off from its West Texas test...

Ariane 5 launches communications satellites
Posted: Tue, Jun 21 9:38 AM ET (1338 GMT)
An Ariane 5 successfully launched two communications satellites June 18 after several delays. The rocket launched from Kourou, French Guiana, at 5:40 pm EDT (...

Soyuz returns three ISS crew to Earth
Posted: Tue, Jun 21 9:36 AM ET (1336 GMT)
A Soyuz spacecraft carrying three International Space Station crewmembers returned to Earth early June 18. The Soyuz TMA-19M spacecraft landed in Kazakhstan at 5:...

Antares return to flight slips to August
Posted: Tue, Jun 21 9:35 AM ET (1335 GMT)
The return to flight of Orbital ATK's Antares launch vehicle is likely to slip to August. The company said June 16 that it is...

Falcon 9 launches two commercial satellites, but landing fails
Posted: Tue, Jun 21 9:34 AM ET (1334 GMT)
SpaceX successfully launched two communications satellites June 15, but failed to land the first stage. The Falcon 9 lifted off on schedule from Cape Canaveral...

LIGO detects second gravitational wave
Posted: Tue, Jun 21 9:32 AM ET (1332 GMT)
A gravitational wave observatory has detected a gravitational wave from colliding black holes for the second time, physicists said June 15. The Laser Interferometer Gravitational-...

Delta 4 Heavy launches NRO payload
Posted: Sun, Jun 12 1:09 PM ET (1709 GMT)
A Delta 4 Heavy successfully launched a classified payload for the National Reconnaissance Office Saturday. The Delta 4 Heavy lifted off from Cape Canaveral, Florida,...