Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

The Milky Way and Andromeda galaxies are predicted to collide and merge between 3.9 and 5.6 billion years from now, based on observed relative motion. The merger process will involve multiple ...

NASA's Pleiades supercomputer has provided fresh insights into the Oort cloud – a vast, theoretical spherical shell of icy objects that surrounds our solar system. For a long time, the Oort cloud's ...

The gravitational influence of dark matter on stellar motions within galaxies, particularly the high velocities of stars in the Milky Way, is the primary evidence for its existence. This influence is ...

Hot spots and tunnels to neighboring "superbubbles" seem to have been created by supernovas and infant star outbursts. When you purchase through links on our site, we may earn an affiliate commission.

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang on ...

Every one of us is unique and important, but at the same time, we’re a microscopic part of something that’s beyond ...

The view of our home galaxy lit up the night sky at the U.S. National Science Foundation's Kitt Peak National Observatory in Arizona. On a warm June evening, viewers in Arizona watched the sky burst ...