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

New models suggest Uranus and Neptune may be far rockier than long believed, reshaping theories of ice-giant interiors, ...

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

As 2025 winds down, change is already in the air. Stoic Saturn and spiritual Neptune are both wrapping up long journeys ...

Astronomers using the Subaru Telescope discover an exoplanet and a brown dwarf, offering new insights and a key target for NASA’s upcoming Roman Telescope ...

For the first time, scientists have continuously monitored a planet's escaping atmosphere over a complete orbit, revealing ...

In their desperate search for another Shadowsmith, the Zombies crew find themselves stranded on an abandoned observatory that drifts silently within ...

Far beyond the bright planets, in the dim outskirts of the Solar System, astronomers keep stumbling on objects that refuse to ...

The Geminids return with near-perfect viewing conditions, offering skywatchers up to 150 meteors an hour under dark December ...

Astronomers observing TOI-3884b found its orbit misaligned by 62° from its star’s rotation, uncovered through multicolour ...

Astronomers have identified a colossal exomoon candidate roughly seven Neptune masses orbiting the giant world HD 206893 B — ...

A network of powerful ground-based telescopes captured rare starspot-crossing events on TOI-3884b, revealing cooler patches ...