You are here
Featured Great Red Spot Guide to Space Juno Jupiter Oval BA 

How Big is the Great Red Spot?

When we used to do the Virtual Star Party (and I really need to start those up again, they were super fun), I had the worst luck with Jupiter’s Great Red Spot. Whenever Jupiter was in the sky, the Great Red Spot always eluded us. Even though we should have had a 50/50 shot at seeing the massive storm on Jupiter, it was always hiding. Why so shy Jovian storm? Jupiter’s Great Red Spot is an enormous swirling storm located on a band of clouds just south of the planet’s…

Read More
Astronomy Earth Featured Ganymede Guide to Space Jupiter Mars mass Mercury Neptune planets Saturn Titan Uranus Venus 

What are the Different Masses of the Planets?

It is a well known fact that the planets of the Solar System vary considerably in terms of size. For instance, the planets of the inner Solar System are smaller and denser than the gas/ice giants of the outer Solar System. And in some cases, planets can actually be smaller than the largest moons. But a planet’s size is not necessarily proportional to its mass. In the end, how massive a planet is has more to do with its composition and density. So while a planet like Mercury may…

Read More