Scientists have found evidence that Einstein's general theory of relativity doesn't quite work in the distant universe.

This stunning Hubble Space Telescope image shows the jewel-bright spiral galaxy NGC 4689, which is located approximately 54 ...

Special relativity is beyond weird. Among its many statements are that moving clocks run slow and that moving rulers shrink.

What did our ancestors think when they looked up at the night sky? All cultures ascribed special meaning to the sun and the ...

Black holes are intriguing astronomical objects that have a gravitational pull so strong that it prevents any object and even ...

Tailored algorithms will help filter a coming flood of astronomical observations, helping scientists make new discoveries ...

Skygazers in Portugal and Spain were in for a shock at the weekend, when a bright green fireball lit up the skies above them.

A meteor dazzled people in Spain and Portugal with an unexpected light show about 15 minutes before midnight local time on Saturday.

What is big, with a fluffy, cotton candy-like composition? Turns out, a planet.An international coalition of astronomers has ...

If sometime in the future you’re able to communicate over your devices faster and with greater security, you may have a ...

The enormous flash that lit up the skies of Portugal and Spain on Saturday night was generated by a meteoroid from a comet ...

According to the European Space Agency (ESA), a bright comet fragment flashed in the sky over Spain and Portugal late on ...