Comet 3I/ATLAS, an interstellar visitor, reaches its closest approach to Earth on Dec 19 at about 167 million miles - visible ...

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

Webb telescope observations hint that a scorching rocky exoplanet may hold a thick atmosphere above molten rock, defying ...

Comet Lemmon was captured over Mauna Kea during its 2025 pass, showing its path and brightness as part of long-term sky records ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Sometime in 2029, the European Space Agency is scheduled to launch its Comet Interceptor Mission. The Interceptor will wait ...

Webb’s latest observations reveal a hellish world cloaked in an unexpected atmosphere: TOI-561 b, an ultra-hot rocky planet ...

Astronomers are gearing up for a rare event this December. The interstellar comet 3I/ATLAS, an erratic wanderer from beyond ...

A "House of Cards" is a wonderful English phrase that it seems is now primarily associated with a Netflix political drama.

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

An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

Burst from M-dwarf star could be powerful enough to strip the atmosphere of any planets that orbit it, with implications for ...