Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

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 ...

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...

Unlike earlier studies, which often examined chemistry and atmospheric motion separately, the new simulations combined both.

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

Extra-solar planets are among the most thrilling discoveries of our age. Just today, scientists using Spitzer space telescope data announced the first detection of infrared light from an extra-solar ...

A new study published in Nature has revealed a rare glimpse into the early life of four young exoplanets orbiting the star ...

The planets of the solar system orbit the sun in a complex and ever-shifting ballet, which can see them appear as glorious ...