The number of planets discovered orbiting other stars stands at over 6,000 and counting, but that’s just the confirmed ones. Many more candidate exoplanets are awaiting verification, some of which are

When comet 3I/ATLAS was discovered in July, on a one-way interstellar journey through our Solar System, Harvard astronomer Avi Loeb suggested it might be an alien spacecraft paying us a visit. Back in

How our knowledge of these worlds beyond the Solar System has exploded in the last three decades

From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

New Horizons was the first mission sent to explore Pluto, conducting a fly-by in July 2015. It was then redirected for a close pass of a much smaller Kuiper Belt object, Arrokoth, in January 2019. Tod

Astronomers love a challenge. They place their observatories on the highest mountains, in the driest deserts, on the coldest ice shelves, beneath the deepest oceans, in orbit around Earth and the Sun,