Northrop Grumman cargo ship reaches the International Space Station a day late after engine issue Harris reveals 'first ...

In 1925, Edwin Hubble's observation of Cepheid variables in the Andromeda galaxy revolutionized astronomy, proving the ...

For years, scientists thought they had a good count of the universe’s most extreme objects — supermassive black holes. But a ...

This brings us to the complexity of NASA's announcement. "Confirmed planets are added to the count on a rolling basis by ...

Astronomers using the Webb Telescope may have found a new type of object: cold, glowing black hole stars from the early ...

When the "little red dots" were first discovered in 2022, scientists thought the objects might be galaxies as mature as the Milky Way, which is about 13.6 billion years old. That's because galaxies ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet ...

Faint hydrogen signals from the cosmic Dark Ages may soon help determine the mass of dark matter particles. Simulations suggest future Moon-based observatories could distinguish between warm and cold ...

The official number of planets outside our solar system has reached 6,000, according to space scientists. NASA's tally of ...

The background of Tianwen-2 is pure, bottomless, and suffocating darkness. There is nothing at all. This ignited a ...

JWST and Hubble uncover JWST’s Quintet, a rare five-galaxy merger from the early universe, forming stars at a rapid rate.

The James Webb Space Telescope has found a lonely black hole in the early universe that’s as heavy as 50 million suns. A major discovery, the object confounds theories of the young cosmos.