The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are these planets really? To put it into perspective, we can run some ...

An international team of astronomers has identified a rare, potentially habitable super-Earth just 19.5 light-years from ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When NASA's newest rover, Curiosity, reaches Mars in about three weeks, it will not be the first ...

JWST found a carbon-atmosphere planet orbiting a pulsar, challenging current models of how planets form. Scientific progress ...