Fraser Cain | Messaging The Aliens, Moving the Earth, Shapes of Coronagraphs | Q&A 258 @frasercain | Uploaded 5 months ago | Updated 17 hours ago
How can we let aliens know we're here? What does a lunar eclipse look like as seen from the Moon? Can we record a supernova in real time? Why aren't coronagraphs just circles? Answering all these questions and more in this week's Q&A show.
Ian Lauer
youtube.com/@ianlauerastro
π¦ Support us on Patreon:
patreon.com/universetoday
π Suggest books in the book club:
goodreads.com/group/show/1198440-universe-today-book-club
00:00 Start
00:37 [Andoria] Can we signal to aliens with green glass?
06:39 [Vulcan] Lunar eclipse seen from the Moon
11:24 [Risa] Can we record a supernova appearing in real-time?
16:05 [Aeturen] Why aren't coronagraphs just circles?
20:53 [Vendikar] How do astronomers determine distances to other galaxies?
25:02 [Remus] Who was my favourite interview?
28:01 [Janus] How do astronomers determine the age of stars?
31:11 [Cait] Can we move Earth by the time the Sun will die?
34:31 [Betazed] Why does the Moon look bigger and yellow sometimes?
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π§ PODCASTS
Universe Today: https://universetoday.fireside.fm/
Astronomy Cast: http://www.astronomycast.com
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βοΈ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
You are free to use my work for any purpose you like, just mention me as the source and link back to this video.
How can we let aliens know we're here? What does a lunar eclipse look like as seen from the Moon? Can we record a supernova in real time? Why aren't coronagraphs just circles? Answering all these questions and more in this week's Q&A show.
Ian Lauer
youtube.com/@ianlauerastro
π¦ Support us on Patreon:
patreon.com/universetoday
π Suggest books in the book club:
goodreads.com/group/show/1198440-universe-today-book-club
00:00 Start
00:37 [Andoria] Can we signal to aliens with green glass?
06:39 [Vulcan] Lunar eclipse seen from the Moon
11:24 [Risa] Can we record a supernova appearing in real-time?
16:05 [Aeturen] Why aren't coronagraphs just circles?
20:53 [Vendikar] How do astronomers determine distances to other galaxies?
25:02 [Remus] Who was my favourite interview?
28:01 [Janus] How do astronomers determine the age of stars?
31:11 [Cait] Can we move Earth by the time the Sun will die?
34:31 [Betazed] Why does the Moon look bigger and yellow sometimes?
π° EMAIL NEWSLETTER
Read by 70,000 people every Friday. Written by Fraser. No ads.
Subscribe for FREE: universetoday.com/newsletter
π§ PODCASTS
Universe Today: https://universetoday.fireside.fm/
Astronomy Cast: http://www.astronomycast.com
π€³ OTHER SOCIAL MEDIA
Mastodon: astrodon.social/@fcain
Twitter: twitter.com/fcain
Twitter: twitter.com/universetoday
Facebook: facebook.com/universetoday
Instagram: instagram.com/universetoday
π© CONTACT FRASER
frasercain@gmail.com
βοΈ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
You are free to use my work for any purpose you like, just mention me as the source and link back to this video.