About million years ago the supermassive black hole at the center of our galaxy unleashed an enormous burst of energy Our primitive ancestors already afoot on the African plains would have witnessed this flare as a ghostly glow that persisted for a milli

Tags: space, million, supermassive, black, hole, center, galaxy, unleashed, enormous, burst, energy, primitive, ancestors, afoot, african, plains, witnessed, flare, ghostly, glow, persisted, credit, nasaesa, cecil


Prev Next Slideshow
(You can use your keyboard arrow keys )

Top Photos


More liked picsHot Pics