The Event Horizon Telescope has captured a photo of a supermassive black hole at the center of M87, a galaxy 54 million light-years away.
This is the second time SpaceX is flying the Falcon Heavy, the most powerful rocket by a factor of two, but it’s the first time it’s doing real work.
No dark matter? No problem! Two galaxies that appear devoid of the mysterious substance could be strong—if ironic—evidence of its existence.