Archive | Planets

Ep. 495: Update on Asteroids & Prospects of Asteroid Mining

By susie on June 7, 2018 in Astronomy, Our Solar System, Planetary Science

Our knowledge of space is starting to match up with our ability to get out there an explore it. There are several companies working on missions and techniques to harvest minerals from asteroids. What other resources are out there that we can use? Astronomy Cast will be celebrating their 500th episode the weekend of Sept […]

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Ep. 494: Icy Moons Update 2018

By susie on May 29, 2018 in Astronomy, Planetary Science, Planets

Thanks to Cassini and other spacecraft, we’ve learned a tremendous amount about the icy worlds in the Solar System, from Jupiter’s Europa to Saturn’s Enceladus, to Pluto’s Charon. Geysers, food for bacteria, potential oceans under the ice and more. What new things have we learned about these places? This episode was recorded on Thursday, 5/31/2018. […]

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Ep. 493: Mars Update 2018

By susie on May 25, 2018 in Astronomy, Our Solar System, Planets

If there’s one place we’ve learned more about in the last 10 years, it’s Mars. Thanks to all those rovers, orbiters, landers which are flying overhead, crawling around the surface, and digging into the rich Martian regolith. What have we learned about Elon Musk’s future home? We usually record Astronomy Cast every Friday at 3:00 […]

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Ep 491: Exoplanet Update 2018

By susie on May 11, 2018 in Astronomy, Extrasolar Planets, Galaxies, Interplanetary Bodies, Planetary Science, Planets

Finally, a big update. Have there been news in the realm of exoplanets? More news that we can possibly cover. But we’ll try our best. We usually record Astronomy Cast every Friday at 3:00 pm EDT / 12:00 pm PDT / 19:00 UTC. You can watch us live on here on AstronomyCast.com, or the AstronomyCast […]

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Ep 483: Stopping in Space

By susie on March 8, 2018 in Forces, Missions, Physics, Planets, Space Flight

This episode was recorded on 3/8/2018 at 4:00 pm EST/ 1:00 PST/ 21:00 UTC! It’s one thing to get from Earth to space, but sometimes you want to do the opposite. You want to get into orbit or touch down gently on the surface of a planet and explore it. How do spacecraft stop? And […]

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Ep. 476: The Overview Effect

By susie on January 26, 2018 in Observing, People, Planetary Science, Planets

After they’ve been to space, many astronauts report that seeing the world from above has given them a totally new perspective on humanity and the state of our planet. It’s called the Overview Effect. Today we’ll talk about this, and what this perspective can teach us all. We usually record Astronomy Cast every Friday at […]

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Ep. 464: Why the Hype over an Exorock?

By susie on October 30, 2017 in Astronomy, Extrasolar Planets, Interplanetary Bodies, Our Solar System

Astronomers this week announced that they had discovered an asteroid or comet on a trajectory that brought it from outside the Solar System? Is this the first case of an object from deep space? And what can we learn from this discovery? We usually record Astronomy Cast every Friday at 12:00 pm PDT / 3:00 […]

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Ep. 460: Earth from Afar: Remote Sensing

By susie on October 6, 2017 in Our Solar System, Planetary Science, Planets

The space age has given us the ability to look at every corner of the globe in every wavelength. It’s revolutionized our ability to predict the weather, keep track of environmental damage, and watch the world change. Today we look at what missions and technologies give us the ability to watch our world from afar. […]

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Ep. 456: Pluto Revisited

By susie on September 8, 2017 in Astronomy, Our Solar System, Planetary Science, Planets

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. We usually record Astronomy Cast every Friday at 1:00 pm PDT / 4:00 pm EDT/ […]

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Ep. 455: Your Practical Guide to Colonizing the Milky Way!

By susie on August 28, 2017 in Planetary Science, Planets

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! We usually record Astronomy Cast every Friday at 1:30 pm PDT / 4:30 pm EDT/ 20:30 PM UTC (8:30 GMT). You can watch us […]