Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner ...

ClockworkThe old models called orreries depicted an ever predictable solar system. The real one is more random: Moving a pencil across your desk today, says one astronomer, can shift Jupiter ...

Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

"This measurement of the planet population from planets somewhat larger than Earth all the way to the size of Jupiter and ...

Some Utahns got a glimpse of a real phenomenon Saturday night: a meteor barreling through the Earth's atmosphere — so big that our NASA solar system ambassador called it a fireball.

Learn about the solar system from a pair of real space museum curators in sci-fi game Elite Dangerous, as Abbie MacKinnon and ...

A giant planet 124 light years from Earth has yielded the strongest evidence yet that extraterrestrial life may be thriving beyond our solar system, astronomers claim. Observations by the James Webb ...

Once you've broken even, the real savings can start ... Here's another look at the formula: (Total solar system costs - rebates) / Electricity bill savings per year = Payback period in years ...