Is the universe infinite? Neil deGrasse Tyson and comedian Paul Mecurio go to infinity and beyond as we explore the origins of relativity, time travel, and the discovery of expansion with astrophysicist Janna Levin, PhD live from Pioneer Works in Brooklyn.NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here:https://startalkmedia.com/show/relativity-round-up-startalk-live-with-janna-levin/Thanks to our Patrons Shari Murnane, Gary, Eoghan Smyth, Dmitry Petrov, Paul Dragicevich, Elizabeth Flores, Joseph Russomano, and William Riley for supporting us this week.Photo Credit: ESO/VVV Survey/D. Minniti, CC BY 4.0, via Wikimedia Commons