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


Two supermassive black holes found in same galaxy
Posted: Wed, Nov 20, 2002, 7:35 AM ET (1235 GMT)
Black holes in NGC 6240 (NASA/CXC/MPE/S.Komossa et al.) Astronomers announced Tuesday that they have discovered for the first time two supermassive black holes in the same galaxy, objects that will likely collide in the distant future. Astronomers used images from the Chandra X-Ray Observatory to find that the galaxy NGC 6240, about 400 million light-years away, has two bright objects in its core. Previous observations at other wavelengths had detected two bright nuclei, but this was the first time the distinct nuclei were found in x-ray wavelengths, indicating that both were active black holes. The twin black holes may result from the recent merger of two smaller galaxies. The two black holes are expected to collide and merge over the next few hundred million years; the collision will generate gravitational waves that will spread across the universe.
<<previous article   next article>>
news in brief
Atlas 5 launches fourth MUOS satellite
Posted: Thu, Sep 3 9:39 AM ET (1339 GMT)

Falcon 9 return to flight a "couple" months away
Posted: Thu, Sep 3 8:54 AM ET (1254 GMT)

Soyuz launches on two-day mission to the ISS
Posted: Thu, Sep 3 8:45 AM ET (1245 GMT)

news links
Thursday, September 3
Planet Welcomes Ann Mather to Board of Directors
Planet Labs — 8:49 pm ET (0049 GMT)
NASA Books Early Seats on Commercial Space Flights
Wall Street Journal — 8:48 pm ET (0048 GMT)


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