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Hosted by Steve Nerlich.
Dear Cheap Astronomy – What is the right message to send to the aliens?
Keen listeners may be familiar with Cheap Astronomy's ongoing despair at Earth's lacklustre
attempts at communication with the wider Universe. A few episodes back we ran through a
history of deliberate communications to date, about 90 per cent of which have been music – well
mostly digitized and some analog radio transmissions of music.
Dear Cheap Astronomy – Can we drill through the ice and find life on Europa?
Firstly, there are quite a few moons out there with suspected subsurface oceans – Ganymede
and Calisto around Jupiter, Enceladus and Dione around Saturn – there's even a suspicion that
Ceres, an asteroid rather than a moon, may have one.
Everyone gets excited about Europa, because it's hot.
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The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].