Venus is a Victim of a Rampant Greenhouse Effect Venus's atmosphere is made mostly of carbon dioxide, one of the greenhouse ...

The first time you may have heard the term ‘dwarf planet’ was when Pluto got demoted to one in 2006 (RIP). However, we actually have six in our Solar System. Pluto, Ceres, Makemake, Haumea, and Eris ...

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

These interesting facts about the moon might make you look at the night sky a little differently Unusual moon facts worth knowing How many facts about the moon do you know? There are so many ...

Its impressive moon tally means it has the most moons of any other planet in the solar system. Saturn's satellites differ greatly in their composition, from icy giants with subsurface oceans to ...

The four planets are classified as sub-Earths because each one is about 19% to 34% the mass of Earth, according to new research. “It’s a really exciting find — Barnard’s Star is our cosmic ...

Seven planets currently form a rare "planet parade" in February's evening sky, with three easy to see with the naked eye, and two more possible. It will return in 2036.

The planetary parade — what appears to be a straight-line formation of several planets in the night sky — is expected to grace our night skies on Friday, Feb. 28. While it won’t be easy to ...

By Katrina Miller Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar ...