459: Arecibo Observatory Astronomy Cast 459: Arecibo Observatory by Fraser Cain & Dr. Pamela Gay

And now Cassini’s gone. Smashed up in the atmosphere of Saturn. But planetary scientists are going to be picking through all those pictures and data for decades. Let’s look back at some of the science gathered up by Cassini so far, and we can still learn from this epic journey.

458: The Science of Cassini Astronomy Cast 458: The Science of Cassini by Fraser Cain & Dr. Pamela Gay

And now Cassini’s gone. Smashed up in the atmosphere of Saturn. But planetary scientists are going to be picking through all those pictures and data for decades. Let’s look back at some of the science gathered up by Cassini so far, and we can still learn from this epic journey.

457: Why Did Cassini Have To Die? In Memoriam Astronomy Cast 457: Why Did Cassini Have To Die? In Memoriam by Fraser Cain & Dr. Pamela Gay

It's time to say goodbye to an old friend, NASA's Cassini spacecraft, which has been orbiting within the Saturnian system since 2004. But why does a seemingly healthy spacecraft and mission need to come to an end? Today we look back at the mission, some of the amazing discoveries, and why its finale was necessary.

456: Pluto Revisited Astronomy Cast 456: Pluto Revisited by Fraser Cain & Dr. Pamela Gay

This week, we return to our starting point, where Astronomy Cast began: Pluto. 11 years on, we have a whole new appreciate for the dwarf planet Pluto. We’ve visited it, probed it and taken pictures. It’s time for an update.

455: Your Practical Guide to Colonizing the Milky Way! Astronomy Cast 455: Your Practical Guide to Colonizing the Milky Way! by Fraser Cain & Dr. Pamela Gay

This episode was recorded live in St. Louis, MO at the Astronomy Cast Solar Eclipse Escape 2017. Listen as we discuss how humans might be able to colonize the Milky Way!