Reference Pluto was once considered the ninth planet in the solar system, it was demoted in 2006 to dwarf planet status. We explore this icy body in more detail here.

Reference Planet Mercury is the sun's nearest planetary neighbor. It has short years, long days, huge surface temperature fluctuations and really weird sunsets.

Reference The U.S.S. Enterprise is one of the most famous spacecraft in science fiction but how close are scientists to building one?

Reference Arcturus is a red giant that is one of the brightest stars in Earth's night sky.

Feature Terraforming lies at the center of James Cameron’s Aliens, but how did they do it?

Reference Learn about the physical characteristics of Saturn and its famous rings, what we know about Saturn’s moons and Saturn’s roots in Greek mythology.

Reference There are three theories as to how Earth's satellite could have been created.

Reference Rocky surfaces and molten cores are what the four inner planets of the solar system have in common

Reference If the rays of the setting or rising sun hit the moon just right, the blood moon appears.

REFERENCE Inspiration4 was the world's first orbital spaceflight unsupervised by professional astronauts, using commercial equipment to launch civilian space enthusiasts into orbit.

Reference Albert Einstein's theory of general relativity is based on the idea that massive objects cause a distortion in space-time, which is felt as gravity.