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Physical Attraction

We are the podcast that explains ideas in physics, one chat-up line at a time. Not just a physics podcast, though - interviews with scientists, scholars, authors and reflections on the history and future of science and technology are all in the wheelhouse.

You can read about us here, contact us here and if you like what we do and want to help us keep doing it, you can donate here. You can subscribe to the Physical Attraction: Extra! Feed over at Patreon: - where for $2 per bonus episode, you can help to support the show, and get some juicy bonus content too. If you donate $2+ via the Paypal link, I can also send you a direct download link to a bonus episode of your choice. Just leave your email, and the episode you want. Bonus episodes released so far: Alien Attack, Part II (45m). 

Aug 26, 2017

It's easy to forget that we are on a pale, blue dot - the one habitable place we know of in the whole, wide, Universe. Fragile. Perhaps too fragile.

It's not that the Universe wants to kill us; it's just that astrophysics doesn't care too much whether a planet is inhabited, or whether the inhabitants have feelings - or not.

Asteroid strikes. Impact from a giant comet. Gamma ray bursts, supernovae, and black holes. Any one of these has the potential to destroy our civilisation.

But how likely is that to happen? And what is there that anyone can do about it?

If you enjoyed this episode, Death From Above - by Phil Plait - is an excellent resource.

Join me as we talk about the potential for an apocalypse... from outer space!