Scientists using the James Webb Space Telescope (JWST) have spotted unusual gases in the air of a planet called K2-18b, which ...

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

A rare interstellar comet will sweep past Earth this week at a safe distance, giving scientists a brief chance to study ...

Although they are technically gas giants, Uranus and Neptune are referred to as "ice giants" due to their composition.

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

The world's most expensive infrared spectrometer - the James Webb Space Telescope - is unearthing extraordinary exoplanet ...

New simulations suggest Uranus and Neptune may contain far more rock than ice, offering fresh explanations for their unusual ...

Researchers employing the James Webb Space Telescope and Canada's NIRISS instrument have observed exoplanet WASP-121b getting ...

On December 19, this interstellar visitor with its peculiar composition offers a glimpse into the makeup of celestial bodies ...

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

Lowell Observatory astronomer Dr. Qicheng Zhang has captured the first ground-based optical images of Comet 3I/ATLAS ...