A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...

Fresh simulations show there is a chance Uranus and Neptune might actually be rock-rich worlds wrapped in thinner icy layers.

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

Leaked images of 3I/ATLAS suggest the US may have been tracking the interstellar object for years using the secret Cassandra planetary defense system, long before the public knew.

TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...

Human bodies are exquisitely tuned to one world, and it is not a forgiving one. Strip away our technology and even Earth ...

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

Fresh JWST data and new models challenge methane hints on TRAPPIST-1e, showing the gas would be rare, unstable, and difficult ...

Data from the James Webb Space Telescope suggests that exoplanet TOI-561 b is surrounded by a thick atmosphere above a global magma ocean.

Researchers using NASA’s James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky ...

An "extra exceptional" Tatooine-like exoplanet, orbiting two suns, has been discovered. Astronomers say the "huge" new world ...

The exoplanet, discovered by Northwestern University astronomers, orbits two suns exactly like Luke Skywalker's fictional ...