Earth is the only life-supporting planet in our Solar System. Until now. Today, we’re bringing Kepler 22-b into our planetary neighborhood. Where would this planet need to orbit within the Sun’s ...

After crossing the boundary of the solar system, NASA’s Voyager 1 and 2 spacecraft began detecting changes scientists had ...

Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

A rare visitor from beyond the solar system has just been found streaking through our cosmic neighborhood. On July 1, 2025, the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

This cosmic visitor is now officially named 3I/ATLAS, and it appears to be a comet from another solar system. Reading time 3 minutes Update: July 3, 09:24 a.m. ET: On Wednesday, July 2, the ...

What can a newly discovered interstellar comet teach scientists about solar system formation and evolution? This is what a recent study presented at the National Astronomy Meeting 2025 hopes to ...

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

Your excellent question affords us the opportunity to distinguish between near-certain astronomical predictions and those which are far less so. Astronomers predict that our home galaxy and the ...

On January 24, 1986, NASA's Voyager 2 spacecraft flew by Uranus. This was the first time any spacecraft had ever visited ...