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

Reference Explore the eight (or nine) planets of the solar system in order from nearest to the sun and discover the many wonders of our solar system along the way. An object seen to have moved in the ...

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

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

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is hidden in our solar system.

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

An international team of scientists led by a Rutgers University-New Brunswick astrophysicist has discovered a potentially ...

This conjunction Friday morning might look like a smiley face to some, but it does give us an accurate 3D view of our solar system. Your view of this event is determined by your location on planet ...

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 ...

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 ...