New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

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

The James Webb Space Telescope has captured a rare glimpse at the gaseous "shrouds" that surround dying stars before they go ...

The mighty James Webb and Hubble space telescopes united to reveal stars being born inside the Small Magellanic Cloud, which orbits the Milky Way.

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

The discovery of a potentially habitable exoplanet by the James Webb Space Telescope sparks fresh curiosity across science ...

A newly discovered object from deep space may be the oldest comet ever observed—possibly more than 7 billion years old, and ...

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

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

Centimeter-sized pebbles have been detected in protoplanetary discs using e‑MERLIN, filling in a critical phase of planet ...

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

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...