Using the James Webb Space Telescope, astronomers are working to confirm potential evidence of life on a distant exoplanet ...

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 ...

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

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 ...

We were doing the typical planet vetting, and I happened to spot this signal that appeared very unusual.” An orbiting ...

Astronomers have confirmed a wandering black hole, about seven times the mass of the Sun, 5,000 light-years from Earth.

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

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

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