How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 ...

A young planet named HIP 67522 causes violent eruptions on its star, dramatically accelerating the loss of its own atmosphere ...

Astronomers discover a new strategy for detecting exoplanets: look for aligned binary stars that reveal hidden worlds more ...

Humans might not know of any intelligent beings beyond Earth, but if they exist, they might already know about us. New ...

But in the past two decades, new types of black holes have been seen and astronomers are beginning to understand how they ...

The Earth might be near the center of a vast low-density void in space, which could explain one of the cosmos's greatest ...

There may be many more satellite galaxies in the Milky Way than have been observed, according to new Durham University ...

One of the main objectives of the Hubble Space Telescope, launched in 1990, was to measure the size and age of the Universe, ...

The most powerful telescope ever launched into space uncovered a cluster of forming stars within the "toe beans" of the Cat's ...

The astronomical community is abuzz over a newly discovered "interstellar object," only the third of its kind ever seen, ...

New research has revealed everything astronomers currently know about the mysterious interstellar object 3I/ATLAS.

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.