Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Over 80% of exoplanetary systems with three or more planets exhibit a "peas-in-a-pod" architecture, characterized by similarly sized planets closely spaced and orbiting near their star. A new study ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

Astronomers have discovered seeds of rocky planets forming in the gas around the baby sunlike star providing *** peek into the start of our own solar system. The the thing that we've discovered is ...

Webb just spotted a carbon-rich moon factory 625 light-years away, revealing how moons like ours may have first taken shape.