"We would need to consider the possibility that the source was created (or trapped as a primordial black hole) by a highly advanced technological civilization," Harvard's Avi Loeb writes.

An exoplanet is any planet beyond our solar system. Most of them orbit other stars, but some free-floating exoplanets, called ...

Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

NASA’s Mars Orbiter is rolling 120° to help see beneath the surface - and it’s revealing clearer signs of ice, rock, and ...

Something incredibly strange is happening in our cosmic neighborhood: a mysterious gravitational disturbance is hurtling Jupiter toward the Sun. If it sounds like science fiction, that’s because ...

NASA has made a new out of this world discovery. NASA's James Webb Space Telescope recently captured evidence of a new planet beyond our solar system.

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

The James Webb Space Telescope (JWST) has once again unveiled astonishing celestial phenomena, most notably the discovery of ...

If Apollo 13 left you starstruck, these 15 space thrillers deliver cosmic drama, heart, and zero-gravity excitement.

Lux Aeterna, a Denver-based startup, is working on a reusable satellite that has attracted $4 million in pre-seeding funding ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

A recent study in Icarus suggests a wandering star could disrupt our solar system. Simulations reveal that a star passing ...