An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

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A new interstellar object has been spotted careening into the solar system at an extremely unusual trajectory.

For millennia, the way we found our way home has been using the stars. The tech we have sent towards those stars also uses ...

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

Can we really reach another solar system? This video explores how humanity might colonize Proxima Centauri B, our closest potentially habitable exoplanet, located in the Alpha Centauri system. We ...

Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...

Before it met the 30,000-50,000 kelvin wall at the edge of our Solar System, Voyager 1 took its final images.

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