Many believe that space is cold. In movies, they sometimes show a person freezing instantly when exposed to open space without a spacesuit. But would that actually happen? In this video I will answer that question as well as talk about the coldest places in the universe, interstellar and intergalactic space, cosmic microwave background radiation, and absolute black bodies. My video about the CMB and the Axis of Evil https://www.youtube.com/watch?v=WVUuPNUhAww 00:00 - Intro 01:27 - The meaning 06:49 - Solar system, Interstellar, Intergalactic 23:01 - Big Bang, Radiation and the Coldest Places Sources Atmospheric density https://www.engineeringtoolbox.com/standard-atmosphere-d_604.html ISS orbit https://eol.jsc.nasa.gov/Tools/orbitTutorial.htm https://arstechnica.com/science/2013/07/how-nasa-steers-the-international-space-station-around-space-junk/ Gas temperature https://www.grc.nasa.gov/www/k-12/airplane/temptr.html Temperature and Heat https://energyeducation.ca/encyclopedia/Heat_vs_temperature https://socratic.org/questions/58189eae11ef6b1f14d6a27d https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/particles.aspx Thermosphere https://scied.ucar.edu/learning-zone/atmosphere/thermosphere Parker Solar Probe https://www.nasa.gov/feature/goddard/2018/traveling-to-the-sun-why-won-t-parker-solar-probe-melt/ https://physics.aps.org/articles/v14/176 Heat transfer https://www3.uwsp.edu/cnr-ap/KEEP/nres633/Pages/Unit2/Section-B-Energy-Transfer.aspx How fast https://www.businessinsider.com/how-long-human-survive-outer-space-without-spacesuit-2017-5 ISS https://science.nasa.gov/science-news/science-at-nasa/2001/ast21mar_1 Spacesuits https://www.nasa.gov/feature/spacewalk-spacesuit-basics Mercury https://solarsystem.nasa.gov/planets/mercury/in-depth/ https://www.eso.org/public/outreach/eduoff/vt-2004/mt-2003/mt-mercury-rotation.html Phobos https://solarsystem.nasa.gov/moons/mars-moons/phobos/in-depth/ Pluto https://www.universetoday.com/13893/temperature-of-pluto/ Absolute Zero https://blogs.scientificamerican.com/observations/racing-toward-absolute-zero/ James Webb Space Telescope https://www.space.com/james-webb-space-telescope-mirrors-temperature https://blogs.nasa.gov/webb/2022/04/21/is-webb-at-its-final-temperature/ https://webb.nasa.gov/content/about/innovations/cryocooler.html https://webb.nasa.gov/content/about/orbit.html Interstellar Gas https://astronomy.swin.edu.au/cosmos/I/interstellar+gas+cloud Intergalactic Gas https://astronomy.swin.edu.au/cosmos/i/Intergalactic+Medium https://www.esa.int/ESA_Multimedia/Images/2013/11/Hot_gas_sloshing_in_a_galactic_cauldron In Space https://sitn.hms.harvard.edu/flash/2013/space-human-body https://www.forbes.com/sites/paulmsutter/2019/04/05/you-will-not-freeze-to-death-in-space/?sh=368ba9dc6523 https://www.livescience.com/human-body-no-spacesuit https://www.businessinsider.com/how-long-human-survive-outer-space-without-spacesuit-2017-5 Thermal Radiation https://www.sciencedirect.com/topics/engineering/thermal-radiation https://astronomy.swin.edu.au/cosmos/T/Thermal+Radiation https://astronomy.swin.edu.au/cosmos/n/Non-thermal+Radiation CMB https://bigthink.com/starts-with-a-bang/universe-temperature/ https://www.princeton.edu/~romalis/PHYS210/CMBTemperature.pdf Black Body https://phet.colorado.edu/sims/html/blackbody-spectrum/latest/blackbody-spectrum_en.html https://astronomy.swin.edu.au/cosmos/B/Blackbody+Radiation Boomerang Nebula https://www.esa.int/Science_Exploration/Space_Science/The_Boomerang_Nebula_-_the_coolest_place_in_the_Universe_heic0301 https://www.sciencealert.com/scientists-can-finally-explain-why-the-boomerang-nebula-is-colder-than-space-itself https://public.nrao.edu/news/2017-alma-boomerang/#PRimage0 https://web.archive.org/web/20060901031441/http://www.smh.com.au/articles/2003/02/20/1045638427695.html