spacetoday.net: space news from around the webin association with SpaceNews


Astronomers discover youngest exoplanet
Posted: Thu, Jan 3, 2008, 7:47 AM ET (1247 GMT)
TW Hydrae exoplanet illustration (MPIA) German astronomers reported this week that they have discovered the youngest extrasolar planet found to date, a world that is still embedded within the protoplanetary disk around its star. Astronomers detected the presence of the exoplanet surrounding the star TW Hydrae indirectly, using the radial velocity technique used to find most of the over 250 known exoplanets. The star itself is estimated to be only 8-10 million years old, and is still surrounded by a protoplanetary disk of dust and gas. The planet, about 10 times the mass of Jupiter, orbits in an inner gap in the disk, completing one orbit in just over 3.5 days. The discovery puts new constraints on how long it takes for planets to form around new stars.
<<previous article   next article>>
news in brief
Soyuz launches 73 satellites
Posted: Sun, Jul 16 9:02 AM ET (1302 GMT)

Pace appointed to be executive secretary of space council
Posted: Sun, Jul 16 9:00 AM ET (1300 GMT)

House passes defense bill with Space Corps provision
Posted: Sun, Jul 16 8:59 AM ET (1259 GMT)

news links
Saturday, July 22
Eyes Wide Open for MASCARA in Chile
ESO — 9:51 am ET (1351 GMT)
Lockheed Martin Reports Second Quarter 2017 Results
Lockheed Martin — 9:49 am ET (1349 GMT)


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