space news from around the webin association with SpaceNews

First stars may have been made of dark matter
Posted: Tue, Dec 4, 2007, 7:58 AM ET (1258 GMT)
The first stars that formed after the Big Bang may have been giant agglomerations of invisible dark matter, astronomers said Monday. The study, to be published next month in Physical Review Letters, argues that so-called "dark stars", made of theoretical dark matter particles called neutralinos, formed shortly after the Big Bang, creating massive objects from 400 to 200,000 times wider than the Sun. Because the objects are made of dark matter, they would not be visible at normal wavelengths of light, but would emit gamma rays and neutrinos. Astronomers said they are still uncertain how long dark stars would last, but left open the possibility that they could still exist today.
<<previous article   next article>>
news in brief
Rocket Lab launches 50th Electron
Posted: Sun, Jun 23 11:31 AM ET (1531 GMT)

Falcon 9 launches Astra 1P
Posted: Sun, Jun 23 11:28 AM ET (1528 GMT)

Isar Aerospace raises $70 million
Posted: Sun, Jun 23 11:23 AM ET (1523 GMT)

news links
Tuesday, June 25
China may need to adjust its approach toward SpaceX
Space News — 4:20 am ET (0820 GMT)

about   ·   ·   mailing list