The Nicest Neighborhoods in the Universe

What does it really take for a planet to be habitable? It turns out, certain parts of a star system, a galaxy, and even the universe as we know it, are more habitable than others. Get to know them as Hank takes you on a tour of some of the nicest neighborhoods in space.

This will be the last video covering a space related topic on this channel! For more videos about space featuring Hank and our new hosts, head over to:
https://www.youtube.com/user/scishowspace
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Sources:
http://www.solstation.com/planets/water-worlds.htm
http://kencroswell.com/RedDwarfActivity.html
http://news.discovery.com/earth/what-would-happen-if-our-planet-became-tidally-locked-130202.htm
http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/010330a.html
http://www.astro.caltech.edu/~george/ay20/Chiappini-MilkyWay.pdf
http://solar-center.stanford.edu/FAQ/Qage.html
http://www.space.com/15341-planet-formation-stars-heavy-elements.html
http://hyperphysics.phy-astr.gsu.edu/hbase/starlog/pop12.html
http://members.nova.org/~sol/solcom/x-objects/cenbulge.htm
http://www.enchantedlearning.com/subjects/astronomy/stars/lifecycle/starbirth.shtml
http://sciencepenguin.com/orion-arm/
http://scitechdaily.com/astrophysicists-document-the-immense-power-of-quasar-radiation/
http://burro.astr.cwru.edu/Academics/Astr222/Galaxy/Structure/metals.html
http://csep10.phys.utk.edu/astr162/lect/gclusters/localg.html

Видео The Nicest Neighborhoods in the Universe канала SciShow