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SciShow Space | How to Clean Up After Ourselves in Space @scishowspace | Uploaded 2 years ago | Updated 1 hour ago
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We've launched thousands of spacecraft over the years. And as the space junk around our planet builds up, researchers are working on ways to clean things up using some obvious things, like lasers, and some less obvious ones, like solar sails.

Hosted By: Hank Green
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Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: Jason A Saslow and David Brooks!

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Sources:
https://www.esa.int/Safety_Security/Space_Debris/Setting_sail_for_sustainable_space
https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/Ultra-thin_sail_could_speed_journey_to_other_star_systems
space.com/light-sail-2-solar-sail-still-flying-planetary-society
nasa.gov/mission_pages/tdm/solarsail/index.html

Previous episodes:
youtube.com/watch?v=u9I0j_D2oSw
youtube.com/watch?v=STo2mV1_FfU

Images:
gettyimages.com/detail/video/the-space-shuttle-lifts-off-from-the-launch-pad-stock-footage/1304191473
commons.wikimedia.org/wiki/File:Debris-GEO1280.jpg
orbitaldebris.jsc.nasa.gov/photo-gallery
commons.wikimedia.org/wiki/File:NASA_Earth-observing_Fleet_June_2012.ogv
gettyimages.com/detail/video/space-debris-around-planet-earth-stock-footage/1309135881?adppopup=true
commons.wikimedia.org/wiki/File:STS-118_debris_entry.jpg
gettyimages.com/detail/video/space-junk-orbiting-earth-stock-footage/488829648?adppopup=true
flickr.com/photos/sneak046/16645222450
gettyimages.com/detail/photo/galactic-trash-orbiting-earth-royalty-free-image/1125629273?adppopup=true
commons.wikimedia.org/wiki/File:%D0%9A%D0%BE%D1%81%D0%BC%D0%BE%D1%81%D1%82%D1%8B%D2%9B_%D2%9B%D0%BE%D2%9B%D1%8B%D1%81%D1%82%D0%B0%D1%80.jpg
commons.wikimedia.org/wiki/File:Laser_broom_(artistic).jpg
commons.wikimedia.org/wiki/File:Cleanspace_One_chasser.jpg
commons.wikimedia.org/wiki/File:Solar_Sail_(14914129324).jpg
commons.wikimedia.org/wiki/File:IKAROS_solar_sail.jpg
commons.wikimedia.org/wiki/File:LightSail_2_Deployment_Test.jpg
commons.wikimedia.org/wiki/File:LightSail_2.jpg
commons.wikimedia.org/wiki/File:LightSail_2_with_deployed_solar_sail.png
commons.wikimedia.org/wiki/File:Solar_sail_tests.jpg
commons.wikimedia.org/wiki/File:NanoSail-D_in_orbit_(artist_depiction).jpg
commons.wikimedia.org/wiki/File:Jules_Verne_Automated_Transfer_Vehicle_re-enters_Earth%27s_atmosphere.jpg
nasa.gov/directorates/spacetech/small_spacecraft/ACS3
nasa.gov/launching-science-and-technology/solar-sail-test-will-study-near-earth-asteroid

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$The Future of the Search for Life Get 50% off your SciShow Space calendar today by heading to https://complexlycalendars.com/products/scishowspace Astronomers have found more than 5,000 planets in the last three decades, but that’s not nearly as exciting as potentially coming across the first extraterrestrial creatures. And we may finally be in a position to make that discovery. Hosted by: Hank Green (he/him) Thumbnail Courtesy: TMT Observatory Corporation Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: Jason A Saslow, David Brooks, and AndyGneiss! Support SciShow Space by becoming a patron on Patreon: https://www.patreon.com/SciShowSpace Or by checking out our awesome space pins and other products over at DFTBA Records: http://dftba.com/scishow Looking for SciShow elsewhere on the internet? SciShow on TikTok: https://www.tiktok.com/@scishow SciShow Tangents Podcast: http://www.scishowtangents.org Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Instagram: http://instagram.com/thescishow Sources: https://exoplanets.nasa.gov/faq/6/how-many-exoplanets-are-there/ https://www.sciencefocus.com/space/how-far-from-earth-could-aliens-detect-our-radio-signals/ https://www.seti.org/primer-seti-seti-institute https://www.centauri-dreams.org/2020/07/03/a-seti-reality-check/ https://www.ncbi.nlm.nih.gov/books/NBK540092/ https://astrobiology.nasa.gov/about/ https://exoplanets.nasa.gov/resources/2312/spectroscopy-detection-of-biosignatures/ http://spiff.rit.edu/classes/resceu/lectures/spectra/spectra.html http://spiff.rit.edu/classes/resceu/lectures/spectra/ans_trans_frac.txt https://academic.oup.com/mnras/article/448/3/2546/1109920 https://astrobiology.nasa.gov/news/detecting-lifes-influence-on-planetary-atmospheres https://www.liebertpub.com/doi/10.1089/ast.2017.1727 https://bio.libretexts.org/Bookshelves/Microbiology/Book%3A_Microbiology_(Boundless)/8%3A_Microbial_Evolution_Phylogeny_and_Diversity/8.15%3A_Euryarchaeota/8.15C%3A_Methane-Producing_Archaea Methanogens https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4323125/ https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/rog.20011 https://www.pnas.org/doi/10.1073/pnas.2117933119 https://arxiv.org/pdf/2208.07393.pdf https://iopscience.iop.org/article/10.3847/1538-4357/ac8cfb https://exoplanets.nasa.gov/trappist1/ https://iopscience.iop.org/article/10.3847/1538-4357/aa7fea https://www.newscientist.com/article/mg25233640-700-3-of-the-most-exciting-space-telescopes-planned-for-launch-by-2034/ https://asd.gsfc.nasa.gov/luvoir/design/ https://asd.gsfc.nasa.gov/luvoir/reports/LUVOIR_FinalReport_2019-08-26.pdf https://arxiv.org/abs/2105.09990 https://www.researchgate.net/publication/7801784_Vegetations_Red_Edge_A_Possible_Spectroscopic_Biosignature_of_Extraterrestrial_Plants https://phys.org/news/2020-03-clouds-obscure-view-exoplanet-surfaces.html https://www.cfa.harvard.edu/facilities-technology/telescopes-instruments/giant-magellan-telescope https://arxiv.org/pdf/1705.05791.pdf https://www.nasa.gov/feature/goddard/2022/nasa-s-webb-detects-carbon-dioxide-in-exoplanet-atmosphere https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-reveals-steamy-atmosphere-of-distant-planet-in-detail Images: https://commons.wikimedia.org/wiki/File:NASA-Exoplanet-WaterWorlds-20180817.jpg https://svs.gsfc.nasa.gov/13375 https://commons.wikimedia.org/wiki/File:Artist%E2%80%99s_impression_of_the_European_Extremely_Large_Telescope_(15761494008).jpg https://www.nasa.gov/image-feature/a-spin-around-an-exoplanet-most-like-earth https://exoplanets.nasa.gov/resources/2312/spectroscopy-detection-of-biosignatures/ https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-reveals-steamy-atmosphere-of-distant-planet-in-detail https://commons.wikimedia.org/wiki/File:Exoplanet-WASP-39b-20180301.jpg https://www.eurekalert.org/news-releases/772739 https://commons.wikimedia.org/wiki/File:Sea_lettuce_in_Brofjorden_1 cropped.jpg https://www.flickr.com/photos/ex_magician/4235161003 https://commons.wikimedia.org/wiki/File:NASA-RedDwarfPlanet-ArtistConception-20130728.jpg https://svs.gsfc.nasa.gov/30870 https://www.esa.int/Science_Exploration/Space_Science/Plato_factsheet https://commons.wikimedia.org/wiki/File:Rendering_of_LUVOIR-A_observatory,_2019.png https://commons.wikimedia.org/wiki/File:Hubble_ultra_deep_field.jpg https://commons.wikimedia.org/wiki/File:Giant_Magellan_Telescope artist%27s_concept.jpg https://commons.wikimedia.org/wiki/File:Top_view_of_tmt_complex.jpg$

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How to Clean Up After Ourselves in Space @scishowspace