Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

Such changes would make it difficult for life as we know it to survive on Earth. The increased heat and radiation would ...

The fastest object in space - Parker Solar Probe - has sent stunning new views of the Sun from its closest distance. The new pictures released by NASA show features in the solar wind and they're ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

There's a new interstellar object moving through our solar system and it's called 3I/ATLAS, according to NASA.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

An object that appears to be from beyond our Solar System has been spotted hurtling towards the Sun, which if confirmed would ...