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Planetary RadioJanuary 10, 2018

Mysterious Tabby’s Star, With Tabby Herself

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On This Episode
Tabetha Boyajian head shot
Tabetha Boyajian

Astronomer and Astrophysicist, Louisiana State University

It may not host an alien “megastructure” but Tabby’s Star still guards many mysteries of science. Astronomer and astrophysicist Tabetha “Tabby” Boyajian leads the worldwide team that is revealing this strange light in the sky. The Curiosity rover has spent another busy four months on Mars. Emily Lakdawalla returns with an update on its progress. Bruce Betts and Mat Kaplan share two new contests and begin preparations for a total lunar eclipse.

Artist concept of uneven dust ring surrounding “Tabby’s Star” KIC 8462852

NASA / JPL-Caltech

Artist concept of uneven dust ring surrounding “Tabby’s Star” KIC 8462852

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Trivia Contest

This week's prizes are a Planetary Society t-shirt and a 200-point astronomy account.

This week's question:

As measured by surface area, what is the largest known body of liquid on Saturn’s moon Titan?

To submit your answer:

Complete the contest entry form at or write to us at no later than Wednesday, January 17th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

Who chose the names of the Galilean moons of Jupiter?


The answer will be revealed next week.

Question from the week before:

What was the last successful Soviet mission to the Moon?


The last successful Soviet mission to the Moon was the Luna 24 sample return mission in 1976.

Listen more: Chinese human spaceflight, mission status, life in the universe, Mars, Curiosity (Mars Science Laboratory), stars and galaxies

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