Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close by. Nearly 4.4 million years ago, they swept past at a distance of only ...

Peering through a cosmic keyhole at distant baby star, astronomers may have opened a new window on the deep past of our own solar system. Weighing in at 0.6 solar mass, HOPS-315 should someday grow to ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...

A computer visualization maps small bodies in the solar system that are expected to be observed by the Rubin Observatory during the 10-year Legacy Survey of Space and Time. Red indicates near-Earth ...

Add Yahoo as a preferred source to see more of our stories on Google. New research finds that two massive, hot stars swept past the Sun about 4.4 million years ago, blasting nearby gas clouds with ...