Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges traditional models and supports the idea that planets may form one by one in ...

By Will Dunham WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet ...

A massive star in the nearby Andromeda galaxy has simply disappeared. Some astronomers believe that it's collapsed in on ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, ...

Straight to the dome.

How space telescopes capture distant galaxies using infrared imaging, precision optics, and astronomy technology beyond Earth's atmosphere.

Celestron, Earth's number one telescope brand, today announced the launch of the Lumina Program, a buy-one, give-one ...

This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

The New Crescent Society, which is organizing the Greenwich event with the Royal Observatory, is hoping moon sighting will become fully established in Britain and be used by mosques.

The caution comes as Ramadan moon sighting date coincides with a solar eclipse earlier in the day, significantly increasing risks associated with optical observation.

A distant star dimmed by 97% for nearly 200 days. Astronomers say giant rings around a brown dwarf or super-Jupiter may explain it.