[Q&A] Dark Matter Evidence, Oort Cloud Shape, Size of Lagrange Points

Will LIGO detect gravitational waves when Betelgeuse explodes? Why are scientists so sure about dark matter? Could Betelgeuse become a black hole after it goes supernova? Why is the Oort cloud a sphere, not a disk? What determines the size of Lagrange points? All this and more in this week's Q&A!
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00:00 Start
00:49 [Tatooine] Why is the Oort cloud a sphere?
06:25 [Coruscant] Could field stars have no metals?
11:00 [Hoth] Will Betelgeuse become a black hole?
12:32 [Naboo] Why the Universe didn't become a black hole?
14:45 [Kamino] Why are scientists so sure about dark matter?
20:56 [Bespin] Will LIGO detect Betelgeuse's bang?
25:02 [Mustafar] Will Earth's polarity flip break all compasses?
26:21 [Alderaan] How big are Lagrange points?
28:45 [Dagobah] What science discovery do I anticipate the most?
29:57 [Yavin] Can we safely go through heliospheric termination shock?
32:03 [Mandalore] How big must the accretion disk be for Sgr A to be visible from Earth?
📺 VIDEO VERSION
https://youtu.be/NvQOatYAmIw
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Creative Commons Attribution 4.0 International (CC BY 4.0)

Will LIGO detect gravitational waves when Betelgeuse explodes? Why are scientists so sure about dark matter? Could Betelgeuse become a black hole after it goes supernova? Why is the Oort cloud a sphere, not a disk? What determines the size of Lagrange points? All this and more in this week's Q&A!

🦄 Support us on Patreon:

https://patreon.com/universetoday

📚 Suggest books in the book club:

https://www.goodreads.com/group/show/1198440-universe-today-book-club

00:00 Start
00:49 [Tatooine] Why is the Oort cloud a sphere?
06:25 [Coruscant] Could field stars have no metals?
11:00 [Hoth] Will Betelgeuse become a black hole?
12:32 [Naboo] Why the Universe didn't become a black hole?
14:45 [Kamino] Why are scientists so sure about dark matter?
20:56 [Bespin] Will LIGO detect Betelgeuse's bang?
25:02 [Mustafar] Will Earth's polarity flip break all compasses?
26:21 [Alderaan] How big are Lagrange points?
28:45 [Dagobah] What science discovery do I anticipate the most?
29:57 [Yavin] Can we safely go through heliospheric termination shock?
32:03 [Mandalore] How big must the accretion disk be for Sgr A to be visible from Earth?

📺 VIDEO VERSION

https://youtu.be/NvQOatYAmIw

📰 EMAIL NEWSLETTER

Read by 60,000 people every Friday. Written by Fraser. No ads.

Subscribe. It's FREE: https://universetoday.com/newsletter

🎧 PODCASTS

Universe Today: https://universetoday.fireside.fm/

Astronomy Cast: http://www.astronomycast.com/

🤳 OTHER SOCIAL MEDIA

Twitter: https://twitter.com/fcain

Twitter: https://twitter.com/universetoday

Facebook: https://facebook.com/universetoday

Instagram: https://instagram.com/universetoday

📩 CONTACT FRASER

[email protected]

⚖️ LICENSE

Creative Commons Attribution 4.0 International (CC BY 4.0)

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