The Cosmic Horseshoe’s perfect Einstein Ring is caused by gravitational lensing, where a massive foreground galaxy bends light from a distant one—revealing secrets of deep space. A black hole ...

Zero-gravity fun, astonishing space station views and more cosmic gems from September 2018. Russian cosmonaut Oleg Artemyev captured this image of the Earth at night from the International Space ...

"Black holes are so stealthy that this one has been practically under our noses this whole time." The galaxy next door to the Milky Way, the Large Magellanic Cloud (LMC), could be hiding a ...