Cosmological Horizons. The Past, Present and Future Limits of Astronomy with Dr. Paul Sutter
The observable Universe is finite, which means there are limits to what we can see, now and deep into the future. Dr. Paul Sutter joins Fraser to talk about the various cosmological horizons that surround us.
Watch it now!
https://www.youtube.com/watch?v=DXtWrDjDIGI
Also, I did another live QA here. Totally solo, but I think it's still worth watching.
Comments (6)
Fraser, it appears Stargate Day is a source of frequent debate. The leading candidate appears to “be August 10th, as that was the date SG-1 arrived in when they traveled back in time to 1969.” I’ve never seen the show, so you’ll have to tell me if that’s legit or not.
<a href="https://www.timeanddate.com/holidays/fun/first-contact-day" rel="nofollow noopener" target="_blank">https://www.timeanddate.com/holidays/fun/first-contact-day</a>
Fraser, I heard your plea. There IS a Star Trek equivalent to May 4. It’s April 5 ... First Contact Day!
All right, we just need to remember to celebrate it. May the 4th is such a big deal. :-) What about a Stargate day?
Hi Fraser! Will you do a video about Planet nine? <a href="https://phys.org/news/2018-05-evidence-planet.html" rel="nofollow noopener" target="_blank">https://phys.org/news/2018-05-evidence-planet.html</a> (I know you already made a video 2 years ago, but now we have more evidence about planet 9)
Hey Andrea, I'm waiting for some more significant evidence. Right now it's sort of the same idea we had before.