Ep. 622: Rocky Moons and Giant Asteroids

A rock is a rock is a rock, right? Across the Solar System there are giant rocky asteroids and even rockier moons. What’s the difference between these two families of objects, and where did they come from?

Up next: Ep 623, 3 Dec 2021

NEOs: Concern or Nah?

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Universe Today

Dr. Pamela L. Gay
Planetary Sci. Inst.

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Ep. 621: Gas Giants

Ep. 621: Gas Giants

For the longest time, the only gas giant planets we knew about were Jupiter and Saturn. But now in the age of extrasolar planets, astronomers have discovered thousands of gas giants across almost as many star systems. What new discoveries have been made about gas giants, both here in the Solar System and across the Milky Way?

Ep. 620: Why Getting to the Outer Worlds is So Difficult

Ep. 620: Why Getting to the Outer Worlds is So Difficult

Good news! Over the next few years, we’re going to see a flotilla of new missions headed to Jupiter and Saturn. Why aren’t we seeing more missions to the outer planets, like Uranus and Neptune? It turns out, those places are far away. Today let’s talk about the challenge of exploring the outer Solar System.

Ep. 619: Icy Moons and Dwarf Planets

Ep. 619: Icy Moons and Dwarf Planets

The outer Solar System is far enough from the Sun that water doesn’t get blasted away into deep space. In this icy realm, there are many worlds with vast quantities of water ice. Today let’s look at the icy outer moons and dwarf planets.

Ep. 618: Ice Giants

Ep. 618: Ice Giants

We’re learning more and more about the outer planets of the Solar System. Uranus and Neptune are ice giants, filled with water and other volatiles that we’d consider ice if it was here on Earth. What’s inside these worlds, and what could we expect to find across the Milky Way?