Aliens | Astronomy Cast

Episodes

1. 612

   Ep. 612: Update: SETI, METI (and WETI)

   Last week we talked about the various ways that astronomers could detect the presence of intelligent civilizations by observing technosignatures. This week we'll give you an update on the state of searching for extraterrestrials. This field has gone from a collection of pariahs to a completely...

   Jul 5, 2021
2. 611

   Ep. 611: What is Required to Confirm Alien Life: Intelligence Edition

   Last week we talked about what it's going to take to confirm basic biological life across the Solar System and the Milky Way. This week, we'll discuss what it's going to take to detect intelligent life out there in space.

   Jun 28, 2021
3. 610

   Ep. 610: What is Required to Confirm Alien Life: Non-sentient Edition

   Are we alone in the Universe? It's one of the biggest scientific questions we can possibly ask. And yet, with rovers on Mars, missions planned to visit Europa and Ganymede. Powerful telescopes able to detect the atmospheres of exoplanets, we're closer than ever to finding out the answer.

   Jun 21, 2021
4. 586

   Ep. 586: Life as We Know It: Habitable Exoplanets & Extremophiles

   As scientists continue to explore the Earth, they're discovering life surviving and even thriving in extreme environments. What hints can this give us about what we might find as we search for life on other worlds?

   Dec 1, 2020
5. 506

   Ep. 506: It’s not Aliens, Unless it’s Aliens

   Did you hear that astronomers from Harvard think that the interstellar asteroid Oumuamua was actually an alien solar sail? Is it aliens? Of course it's not aliens. But some day, it'll actually be aliens.

   Nov 15, 2018