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 ...

TOI-561 b is about 1.4 times the size of Earth and completes one orbit around its star in less than 11 hours, placing it 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.

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 ...