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

St. Andrews University physicists who looked at the planet said that the research conjures "two possible explanations." ...

The NASA/ESA/CSA James Webb Space Telescope has provided the first direct measurements of the chemical and physical ...

Just two decades after astronomers discovered the first exoplanet, NASA has confirmed the existence of 6,000 alien worlds.

Cosmic dust—the tiny particles that help form stars, planets and the chemical building blocks of life—might be much spongier ...

Astronomers have discovered 2017 OF21, a distant dwarf planet candidate located about 90 times farther from the Sun than ...

Using JWST, astronomers uncovered auroras, exotic clouds, and storms on a blazing rogue planet. Brilliant aurora-like ...

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

Researchers detect 7 complex molecules, including acetylene and benzene, marking 1st chemical snapshot of moon-forming ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

The Bion-M No 2 satellite’s mission was to study the impact of space on these critters, but to also test the wild concept — a ...

Astronomers found an atmosphere where they least expected it—clinging to an exoplanet that’s too small, too hot and too old ...