black- hole

after a explosion of the black-hole it takes about 1 crore years to form gravitational waves.every star contains one black-hole which is equivalent to million crore solar mass.

Star Gives Birth to Possible Black Hole in Hubble and Spitzer Images

A Quick Look at XJ1500+0154

Hubble Detects a Rogue Supermassive Black Hole

X-ray Echoes Map a Black Hole’s Disk

A Tour of Black Hole Seeds

A Tour of Dual Black Holes

A Quick Look at J140737 and J122104