spacetoday.net: space news from around the web

Explore Mars event
Astronomers detect gas streams linked to new planets
Posted: Thu, Jan 3, 2013, 6:46 AM ET (1146 GMT)
Protplanet gas streams illustration (ESO) Radio astronomers announced Wednesday that they have detected for the first time streams of gas flowing into a star created by the formation of new planets. Astronomers detected the gas streams around HD 142527, a star 450 light-years from the Earth, in observations by the ALMA radio telescope array in Chile. The streams of gas come are drawn from an outer protoplanetary disk surrounding the star by gas giant planets that formed in a gap between that outer disk and the inner one. Some of the material in the streams are captured by the new planets, but much of it continues to flow inward to the inner disk, replenishing it as the star itself grows. The development of these gas streams had been predicted by models of planetary formation, but had not been directly observed before now. The findings appear in the latest issue of the journal Nature.
<<previous article   next article>>
news in brief
SpaceX releases video of first stage landing
Posted: Wed, Jul 23 8:47 AM ET (1247 GMT)

Progress undocks from ISS
Posted: Tue, Jul 22 9:02 AM ET (1302 GMT)

Soyuz launches research satellite
Posted: Sun, Jul 20 12:49 PM ET (1649 GMT)

news links
Wednesday, July 23
SpaceX Soft Lands Falcon 9 Rocket First Stage
SpaceX — 8:28 am ET (1228 GMT)
WH defends limited access to Apollo crew
The Hill — 8:26 am ET (1226 GMT)
The Apollo 11 Mission: 45 Years Later
White House — 8:23 am ET (1223 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list