AaS! 136: Can planets survive the death of their star?
Ask a Spaceman!
Paul M. Sutter
4.8 • 853 Ratings
🗓️ 15 September 2020
⏱️ 31 minutes
🧾️ Download transcript
Summary
When stars die, do their planets die too? What can possibly survive after a supernova explosion? How will the death of the sun affect our solar system? Can zombie planets rise from the dead? I discuss these questions and more in today’s Ask a Spaceman!
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Music by Jason Grady and Nick Bain. Thanks to Cathy Rinella for editing.
Hosted by Paul M. Sutter, astrophysicist and the one and only Agent to the Stars (http://www.pmsutter.com).
Transcript
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| 0:00.0 | Check this out. |
| 0:08.8 | The first ever exoplanet ever discovered. |
| 0:13.8 | I'm talking about the first planet found around a star other than the sun. |
| 0:18.5 | The first one ever in the whole history of human civilization, we have been wondering about |
| 0:23.4 | the existence of planets around other stars since forever. |
| 0:27.0 | And the first one finally spotted was around a dead star. |
| 0:33.5 | And not just any dead star. |
| 0:35.0 | I mean, there's a lot of different kinds of dead stars, but a pulsar. |
| 0:38.0 | And if you're morbidly curious, the pulsar was named PSRB-1257 plus 1-2. |
| 0:45.8 | I'm not in charge of naming things in astronomy as usual, as you already know. |
| 0:50.1 | And this irks me greatly because I wish I was in charge of naming things because I would name the star to host the first ever discovered Exoplanet anything but PSRB-1257 plus 1-2. |
| 1:03.8 | PSR. |
| 1:05.3 | Poser? |
| 1:05.9 | Like, why did that become the short version of it? |
| 1:08.8 | Never mind. |
| 1:09.6 | Never mind. |
| 1:10.1 | That's just a rant for a different day |
| 1:12.7 | anyway this star this pulsar is a 2,300 light years away and yeah it hosts a planet and |
| 1:20.7 | think about what just what like a pulsar is an object that is more massive than the sun, like two or three times more massive |
| 1:30.3 | than the sun. It is no bigger than your neighborhood. These things are a few miles across. These |
| 1:37.0 | things spin up to thousands of revolutions per minute. That's faster than the blender in your kitchen. |
| 1:43.2 | These things host some of the strongest |
... |
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