NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

Add Yahoo as a preferred source to see more of our stories on Google. Hubble captured this image of the interstellar comet 3I/ATLAS on July 21. - NASA/ESA/David Jewitt (UCLA) A new image has revealed ...

Ever since the famous "interstellar invader" comet 3I/ATLAS was discovered in our solar system earlier this year, scientists have been enamored with its existence and the serendipity that brought it ...

The comet, discovered in July 2025, originated far beyond our Solar System and is thought to be around 7 billion years old - even older than the Sun. View on euronews ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around the red planet had a front-row ...

It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to 153,000 miles per hour. It's also only the third confirmed interstellar ...

"I don't think anyone's made this connection between the surface fluid pattern and the interior properties of these planets." ...

Mars has a huge network of canyons that stretches about 2,500 miles (4,000 kilometers) across its equator. This canyon system, called Valles Marineris, is the largest in the solar system, dwarfing ...

Our Sun’s outer atmosphere, the corona, is millions of degrees hotter than it should be, and no one knows why.