The Andromeda galaxy is heading straight toward our own Milky Way. The two galaxies will inevitably collide. Will that be the very last night sky our solar system witnesses? You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime See that fuzzy blob on the sky? The one just left of the Milky Way center in the constellation of Andromeda. That’s M31 – the Andromeda galaxy. It’s two and a half million light years away and host to a trillion stars. It has a beautiful spiral…

What exactly will happen when the sun dies? You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

Energy is the most powerful and useful concept in all of physics, but what exactly is it? You can start your free trial of The Great Courses Plus at  http://ow.ly/E15c30hIv7c You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website. To be a Guest Author please visit our "Post Your Article" page.More Posts - Website

What happens when a star eats its planets? Find out on today’s Space Time Journal Club. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_… Previous Episode: The End of Habitable Zone https://www.youtube.com/watch?v=wwGeC… RESOURCES Starlifting https://youtu.be/pzuHxL5FD5U Kronos & Krios: Evidence for Accretion of a Massive, Rocky Planetary System in a Comoving Pair of Solar-Type Stars https://arxiv.org/pdf/1709.05344.pdf https://arxiv.org/abs/1709.05344 Korycansky, Laughlin & Adams 2000 https://deepblue.lib.umich.edu/bitstr… Guest AuthorAll Guest Author Posts are submitted or additional content Wave Chronicle has added to the website.…

Paul Dirac’s insights into the nature of Quantum Mechanics laid the foundation for Quantum Field Theory and predicted the existence of anti-matter. Try Skillshare at http://skl.sh/spacetime You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_… Review our quantum mechanics playlist: http://bit.ly/2rWTYSO Book recommendations: The Quantum Divide, by Christopher Gerry & Kimberley Bruno The Character of Physical Law, by Richard Feynman Previous Episode: Supervoids vs Colliding Universes https://www.youtube.com/watch?v=lrS0r… It’s 1928. Over the past quarter century, the greatest geniuses of the modern era discovered the two keys to…

Could the mysterious Cold Spot found in the CMB be the result of a collision with a bubble universe? Try 23andMe at http://23andme.com/spacetime ____________________________________________________ [CORRECTION: The calculated ISW cooling from cold spot observed voids is 0.000032 Kelvin not 0.032 K as is listed on screen, the actual cold spot temperature differential is 0.000150 Kelvin not 0.15 K, and the actual ISW cooling from the control region is 0.000014 Kelvin not 0.014 K. The actual control region temperature differential is 0.000015 Kelvin not 0.015K. Thanks to Chris Morong for catching this discrepancy!] You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at…

Population III stars were the very first stars in our universe and far larger than any we can see today. Where are they now? Start your Audible trial today at http://www.audible.com/spacetime You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_… Previous Episode: Martian Evolution https://www.youtube.com/watch?v=vLR_a… Soon after the Big Bang, the first generation of monstrously large stars ignited, lit up the universe, and then died. The resulting swarms of supernova explosions enriched the universe with the first heavy elements and LOTs of…

The first total solar eclipse in over 40 years is about to hit the United States. Get 15% off your next purchase at https://www.legalzoom.com/spacetime. LegalZoom is not a law firm or a substitute for the advice of an attorney. And be sure to check out Vanessa Hill’s documentary Mutant Menu https://www.youtube.com/watch?v=NrDM6… You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_… Previous Episode: Ancestor SImulations with Neil deGrasse Tyson https://www.youtube.com/watch?v=hmVOV… Get your eclipse glasses ready because the a total solar eclipse is an astronomical event unlike any…