When I was a kid, there were nine planets. Now we know of thousands! But that includes exoplanets, alien worlds that orbit alien suns. Only eight planets call our solar system home. Or there might ...

A breathtaking photograph taken in the UK could be the first to depict all the planets in our solar system at the one time. The milestone image was captured in Somerset by a UK photographer during an ...

LYNCHBURG, Va. (WSET) — If you're trying to get a beautiful look at the planets in our solar system, you're in luck. Between February 25 and February 28, all seven planets in our solar system will be ...

If you’d like to see all the planets of our solar system, this is a good week to do so. Step outside at dusk and you’ll notice the most obvious of planets in the southwestern sky. I’m referring, of ...

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar system ...

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 ...