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

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

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

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

Astronomers have discovered yet another alien visitor to the Solar System.

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.

In its closest-ever dive into the Sun’s atmosphere, NASA’s Parker Solar Probe has returned stunning new images and data that ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.