4.8 • 853 Ratings
🗓️ 6 June 2017
⏱️ 34 minutes
🧾️ Download transcript
How is the bullet cluster the “smoking gun” for dark matter? Why aren’t alternate theories of gravity satisfactory? Could dark matter just be a bunch of black holes? I discuss these questions and more in today’s Ask a Spaceman!
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Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!
Big thanks to my top Patreon supporters this month: Justin G., Kevin O., Justin R., Helge B., Tim R., Michael C., Lars H., Ray S., John F., James L., Mark R., Alan M., David B., and Silvan W.!
Music by Jason Grady and Nick Bain. Thanks to WCBE Radio for hosting the recording session, Greg Mobius for producing, and Cathy Rinella for editing.
Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars (http://www.pmsutter.com).
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0:00.0 | You know what time it is. It's time for. Ask a Space Man. I'm your host Paul Sutter. You've got |
0:12.0 | questions and I've got answers. You know how the show works, but let's illuminate again. |
0:16.6 | No, wait, I've used the illuminate joke. Oh, well, we'll just have to run with it. |
0:21.4 | Let's illuminate it again. |
0:22.8 | You go online to Twitter or Facebook. |
0:24.5 | Use the hashtag Ask a Spaceband. |
0:26.4 | Send me some questions, and I will answer them. |
0:29.0 | We have one simple goal with this show. |
0:31.7 | Complete knowledge of time and space. |
0:34.4 | And on the road to complete knowledge of time and space, |
0:37.1 | we have many questions |
0:38.7 | around a simple topic. We have at KDA Welch asking, is dark matter made of black holes? |
0:45.2 | We have Andrea C. if I email, how do we know dark matter isn't just different gravity? |
0:50.8 | Oscar Z email. Why can't dark Matter just be Black holes? Peter W. |
0:54.8 | Email. |
0:55.3 | Why is Dark Matter a thing? |
0:57.3 | Instead of just modified gravity. |
0:59.1 | William G. email. |
1:00.6 | Just wants to know what's Dark Matter. |
1:02.7 | Olivia P. |
1:03.7 | Also, what's Dark Matter? |
1:05.5 | Matthew A. |
... |
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