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Planetary RadioJanuary 24, 2017

Ice, Snow and Lava: Exploring Antarctica’s Mount Erebus

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Special Guests
Rosaly Lopes
Rosaly Lopes

Senior Research Scientist/Manager for Planetary Science, Jet Propulsion Laboratory

Michael Carroll
Michael Carroll

Astronomical Artist

Eugene Cernan
Eugene Cernan

Apollo 17 Commander, NASA

Laura Danly
Laura Danly

Astrophysicist and Curator, Griffith Observatory

Earth’s southernmost active volcano may also be its most remote. Rosaly Lopes and Michael Carroll recently spent a few frigid days on the slopes of Antarctica’s Mount Erebus. What they learned may help us understand volcanoes on other worlds. Emily Lakdawalla shows us stunning new, close-up images of Saturn’s rings. Bill Nye says a LightSail solar sail prototype has gone on display in a London museum. How could black holes help answer a space trivia contest question about Earth and Saturn? Also, an encore presentation of a visit with the late Gene Cernan, last astronaut to walk on the moon.

Mount Erebus, Antarctica

Evan Miller

Mount Erebus, Antarctica
Mt. Erebus ice cave

Evan Miller

Mt. Erebus ice cave
Lower Mount Erebus, Antarctica

Michael Carroll / Rosaly Lopes

Lower Mount Erebus, Antarctica
Mount Erebus Caldera, Antarctica

Michael Carroll / Rosaly Lopes

Mount Erebus Caldera, Antarctica
Rosaly Lopes with the WINGS WorldQuest flag

Michael Carroll / Rosaly Lopes

Rosaly Lopes with the WINGS WorldQuest flag
At Mount Erebus, Antarctica

Michael Carroll / Rosaly Lopes

At Mount Erebus, Antarctica
Michael Carroll in an Antarctic cave

Michael Carroll / Rosaly Lopes

Michael Carroll in an Antarctic cave
Antarctic ice towers

Michael Carroll / Rosaly Lopes

Antarctic ice towers
Tents on Fang Glacier

Michael Carroll / Rosaly Lopes

Tents on Fang Glacier
Mount Erebus, Antarctica

Michael Carroll / Rosaly Lopes

Mount Erebus, Antarctica

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Trivia Contest

This week's prizes are a lovely Planetary Radio t-shirt, now available in both men’s and women’s styles. Also, a 200-point iTelescope.net astronomy account, and a Planetary Society rubber asteroid.

iTelescope.net
iTelescope.net

This week's question:

What solar system moon is closest in size to Mercury?

To submit your answer:

Complete the contest entry form at http://planetary.org/radiocontest or write to us at [email protected] no later than Tuesday, January 31st at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

Approximately how wide is the combined, complex caldera of Olympus Mons, the Martian volcano?

Answer:

The answer will be revealed next week.

Question from the week before:

Approximately how many squished-up Earths would fit inside Saturn?

Answer:

You could squish about 764 Earths into a hollowed-out Saturn. Ah, but how many Earth mass black holes? Answer is in the show.

How to prepare 764 Earths to fill Saturn

Daniel Hazard

How to prepare 764 Earths to fill Saturn

Listen more: FINDS Exo-Earths

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