We complete our planetary tour with a review of the ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird...

Today we're rounding out our planetary tour with ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird...

Take a tour of the gas giants and learn important facts about these planets. Understand that Jupiter has a giant storm called Great Red Spot, Saturn has the biggest and brightest rings, how Uranus spins on its side, and Neptune's storms...

In this episode of Crash Course Kids, Sabrina takes leads a virtual tour of the Gas Giants and shows what kind of weather happens on those planets. [4:42]

Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut-shaped region beyond the planets that is aligned with the plane of the solar system. The...

If Neptune didn't catch Triton we might have another Dwarf Planet in our Solar system -- maybe even another Planet or double system. We show how this could have happened. [2:06]

Now that we're done with the planets, asteroid belt, and comets, we're heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system....

Explanation of the characteristics an object must have to be considered a planet. [7:53]

Find out professor Anna Frebel's answer to the question, "How come our gas giants stay in a sphere, instead of the gas just floating around everywhere in space?" [3:29]