Comet 3I/ATLAS, an object from another star that was found speeding through our solar system last summer, is now fading from ...

A giant planet circling a nearby star has given astronomers a rare look at what a colder, more Jupiter-like world can be like ...

New research reveals that the mysterious interstellar visitor 3I/ATLAS comes from a very cold alien environment, new research ...

A telescope tracked an alien comet after its solar pass, and the chemistry it found inside was nothing like what came before.

NASA's SPHEREx space telescope reveals widespread water ice in Cygnus X, showing how dust shields molecules in star-forming ...

This enigmatic orb has undergone extensive examination and DNA testing, enabling scientists to reveal its true origins ...

Scientists have discovered unexpected water-ice clouds on a distant, Jupiter-like exoplanet, challenging current atmospheric ...

Explore the UFO mysteries J. Allen Hynek uncovered with Project Blue Book and how his findings challenged the Air Force's ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

The Hubble Space Telescope has made multiple observations of exoplanet WASP-121 b, also known as Tylos. The extreme ...

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...