Astronomers discovered a planet that orbits its star so closely that its surface is being scorched into magma and vaporizing ...

Astronomers have spotted a distant planet shedding matter with each orbit around its host star, generating a comet-like tail ...

Astronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter, the elusive stuff that ...

Just as Luke Skywalker watched two suns set from his sandy home planet Tatooine, a newly discovered planet called 2M1510 is ...

Astronomers confirm a wandering black hole in our galaxy’s Sagittarius region using Hubble and Gaia microlensing data.

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

"The extent of the tail is gargantuan, stretching up to 9 million kilometers [5.6 million miles] long," said MIT astronomer ...

On a faraway planet, the James Webb Space Telescope has picked up signs of molecules that, on Earth, are produced only by ...

Objects in newly discovered classes also tend to be faint because, again, bright objects will have already been spotted. This ...

A surprisingly well-formed spiral galaxy has been spotted just a billion years after the Big Bang, challenging long-held ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

A loud bang and a bright green ball of light seen in the skies above Australia have left astronomers perplexed about the ...