Universe Today Podcasts With Fraser Cain

In this week's questions show, I answer questions about how the International Space Station stays above the Earth's atmosphere, does dark matter need a better name? And how do astronomers know they're looking at exoplanets and not sunspots? Michael Rodruck with Pennsylvania State University https://sites.psu.edu/mrodruck/ 00:18 How does the ISS stay up? 01:54 Does dark matter need a better name? 04:12 Could planets orbit something that isn't a star? 07:00 GOTO Telescopes 09:22 How do we know it's exoplanets and not sunspots? 11:55 Interstellar travel without wormholes? 14:23 Why make Mars habitable? 16:38 Have we mapped Venus? 18:23 What would it feel like to stand on a massive disk? 20:25 Can dark matter get concentrated into a black hole? 22:30 Are there even closer black holes? 24:21 How do we know how many stars in the Milky Way? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here. Our Book is out! https://www.amazon.co