Could We Actually Detect Life on Other Planets?

Go to https://curiositystream.com/Space to start streaming Miniverse. Use the promo code "space" during the sign-up process to get your first 30 days free. There’s probably life somewhere besides Earth, but all the exoplanets are so far away we may never see their surfaces in detail or intercept a clear radio signal from them. How do we determine if a distant planet has life? Host: Reid Reimers SciShow has a spinoff podcast! It s called SciShow Tangents. Check it out at https://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Bill & Katie Scholl, Adam Brainard, Greg, Alex Hackman, Andrew Finley Brenan, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.space.com/24276-dyson-spheres-how-advanced-alien-civilizations-would-conquer-the-galaxy-infographic.html https://earthsky.org/space/what-is-a-dyson-sphere https://aasnova.org/2018/08/27/seti-on-the-side-seeking-dyson-spheres-with-gaia/ https://arxiv.org/abs/1103.5369 https://www.space.com/13514-alien-city-artificial-lights-extraterrestrial-planets.html https://arxiv.org/abs/1608.06930 http://advances.sciencemag.org/content/4/1/eaao5747 https://iopscience.iop.org/article/10.1088/2041-8205/792/1/L7/meta https://iopscience.iop.org/article/10.1088/2041-8205/792/1/L7/meta https://news.nationalgeographic.com/2018/01/mystery-of--alien-megastructure--star-has-been-cracked/ ------ Images: https://www.spacetelescope.org/videos/hubblecast97e/ https://www.videoblocks.com/video/9-in-1-4k-ultra-hd-pack-of-green-screen-ufo-flying-saucer-alien-spaceship-realistic-spacecraft-ruucgiyxliusisuh7 https://www.spacetelescope.org/videos/heic1705a/ https://www.videoblocks.com/video/3d-rendered-video-with-bacteria-b8fdzhkjjzj7rz7wf7 https://www.istockphoto.com/photo/alien-mega-structure-dyson-sphere-around-a-distant-star-in-front-of-the-milky-way-gm698572974-129417777 https://www.istockphoto.com/photo/a-swarm-of-asteroids-in-front-of-the-galaxy-gm914145772-251616949 https://commons.wikimedia.org/wiki/File:Red_fluorescent_representatives_of_five_different_reef_fish_families.jpeg https://www.eurekalert.org/multimedia/pub/191961.php https://commons.wikimedia.org/wiki/File:New_shot_of_Proxima_Centauri,_our_nearest_neighbour.jpg https://www.videoblocks.com/video/cloud-timelapse-c4ws2uy https://svs.gsfc.nasa.gov/20250https://commons.wikimedia.org/wiki/File:KIC_8462852_in_IR_and_UV.png https://www.jpl.nasa.gov/spaceimages/details.php?id=pia20053 https://www.istockphoto.com/vector/set-of-monsters-isolated-on-white-background-gm921660984-253086924 https://www.istockphoto.com/vector/big-martian-panorama-gm945479754-258239099