News Astronomy

Chandra eyes low-temperature black hole

By Ron Cowen

- More than 2 years ago

From Atlanta, at a meeting of the American Astronomical Society black holes rank among the most intriguing objects in the universe. Now, astronomers have found a really cool one.

False-color X-ray image of the core of the Andromeda galaxy. Red indicates highest temperature (20 million kelvins), blue the lowest (1 million K). Blue dot indicates suspected black hole.