發現河外星系裡的中等質量黑洞

WFC3

Swift XMM-Newton 天文衛星,在河外星系NGC 5408裡,發現了一個中等質量黑洞。
http://www.nasa.gov/topics/unive ... ddle_blackhole.html

Astrosing

Dear WFC3,

  Thanks for your information. It is impressive and interesting.

Sing上