Most familiar stars peacefully orbit the center of the Milky Way. But citizen scientists working on NASA’s Backyard Worlds: Planet 9 project have helped discover an object moving so fast that it will escape the Milky Way’s gravity and shoot into intergalactic space. This hypervelocity object is the first such object found with the mass similar to or […]
400 kms^-1 or about 1mc
More digits: About 0.001491 c
Mighty fast for a macroscopic object.
Better not standing in its way. Luckily, it is sufficiently far away.
When I first read the headline, I was thnking: Coming here? How close?