British astronomers may have solved the mystery of an "interstellar object" hurtling towards our planet. Scientists believe the mysterious interstellar visitor may be the oldest comet ever observed.

NASA’s Juno spacecraft has unveiled an exciting breakthrough: the discovery of an entirely new type of plasma wave near ...

Astronomers who examined the sound waves from the Big Bang say that the Earth — and the entire Milky Way galaxy we call home — could be trapped in a huge void billions of light years across. Their ...

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

When huge stars are denied a glorious death, something more brutal occurs, and you get mysterious signals known as fast x-ray transients.

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

New simulations suggest that dozens of ultra-faint “ghost” galaxies may be orbiting the Milky Way, hidden from current ...

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

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

Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar ...

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.