A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

Plato, the European Space Agency's terrestrial planet hunter spacecraft, is seen after having 24 of its 26 cameras installed.

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, ...

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.

A fresh long- period near advisory level south-southwest swell is expected to arrive Friday, bringing an upward trend with ...

Captain Planet and the Planeteers was a beloved ’90s animated series. A lot of ’90s kids have fond memories of the cartoon, a ...

Jeremy Irons, Vanessa Redgrave and Michael York have joined the voice cast of 3D animated family sci-fi adventure “The ...

The Planet Earth and Moon in Orbit 42179 set measures 9" high, 12.5" long, and 7" wide. It's comprised of 526 pieces and is marketed for ages 10 and older. Technically speaking, this is a relatively ...