How to Signal Aliens
Want to ask some sort of crazy question about Space?: Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Let us know what topics you want to learn more about: http://bit.ly/spacetimepoll Everyone has their own opinion as to whether or not aliens exist. But let’s assume they do for a second and we wanted to let them know we re here!!!! How should we signal our species existence through the expanse of space? There are a few options, but which is the most effective and the cheapest? Find out in this week’s episode of PBS Space Time! Congrats to last week’s Balloon Challenge Winners! Юра Сороквторой Jonathan LeMoine Russell Subedi Stan Aron Alexander Keebler Extra Credit: Low detectability of our radio leakage by aliens (and vice-versa): http://www.jbis.org.uk/paper.php?p=2014.67.17 http://arxiv.org/pdf/1102.1938.pdf (free version of above) http://www.faqs.org/faqs/astronomy/faq/part6/section-12.html http://arxiv.org/abs/1007.0850 Benford, Benford, Benford paper: http://arxiv.org/abs/0810.3966 Laser beacons / Optical SETI: http://www.astronomynow.com/news/n1004/20seti4/ Also discussed in Benford paper Luc Arnold paper on Transit Signatures of Artificial Objects: http://iopscience.iop.org/0004-637X/627/1/534/ (open access) Kepler data access page (public data): http://keplergo.arc.nasa.gov/DataAnalysisRetrieval.shtml COROT data access page (ESA s transit telescope, also public data): http://idoc-corot.ias.u-psud.fr ----------------------------------------------------------------------- Comments: Blackmark52 https://www.youtube.com/watch?v=NblR01hHK6U&lc=z12tujiyymayvzzrg04cjlc4qwnzilggu2s Gary Oak https://www.youtube.com/watch?v=NblR01hHK6U&lc=z12detbgzqbsyhwxf04chjiz3reacd0b2g4 Mastikator https://www.youtube.com/watch?v=NblR01hHK6U&lc=z125itv4sr3dsjae0230zrqh0ridtrw0a DJ braiser https://www.youtube.com/watch?v=NblR01hHK6U&lc=z125itv4sr3dsjae0230zrqh0ridtrw0a joseph199627 https://www.youtube.com/watch?v=NblR01hHK6U&lc=z125itv4sr3dsjae0230zrqh0ridtrw0a clay eickemeyer https://www.youtube.com/watch?v=NblR01hHK6U&lc=z124yx3rxtrjhhruu23eu1fqvznrx15a404 padriac54 https://www.youtube.com/watch?v=NblR01hHK6U&lc=z13gxtfygkyxylsc222rdbwy0sfxzdbgk04 Euan Johnson https://www.youtube.com/watch?v=NblR01hHK6U&lc=z13uvbkh1mb1wbr4r04cihgoqpm4hjdb24c Josh Mullins https://www.youtube.com/watch?v=NblR01hHK6U&lc=z13vybvynxqsud0o004cjvuybmvqgzwos0g danx505 https://www.youtube.com/watch?v=NblR01hHK6U&lc=z125i1xjhnuydl3wj04cedloane4sh34czw0k Agen0000 https://www.youtube.com/watch?v=NblR01hHK6U&lc=z12lfzrapz31hjx1t225gzn4homvglfil04 lexis lex https://www.youtube.com/watch?v=NblR01hHK6U&lc=z123whgovyq4jhp4x04cfxfp1mr5ivvhnio Pedro Gusmao https://www.youtube.com/watch?v=NblR01hHK6U&lc=z13ytfrbgqedy1h2c23mibi5jqqitb5eo Stephan W https://www.youtube.com/watch?v=NblR01hHK6U&lc=z130ifxjqwugul0w004chlhokriusfrpelk0k George Mpantes https://www.youtube.com/watch?v=NblR01hHK6U&lc=z130ifxjqwugul0w004chlhokriusfrpelk0k Music: Saw Slicing - Patternbased (https://soundcloud.com/patternbased) Heisse Luft - Thompson and Kuhl (https://soundcloud.com/phlow/05-x-com) u dont know im fadin Deep Blue - Janne Hanhisuanto (https://soundcloud.com/jannehanhisuanto) Earth Breath - Human Terminal (http://freemusicarchive.org/music/Human_Terminal/Press_Any_Key/01_Earth_Breath) Tropico de Tauro - Sr. Aye https://soundcloud.com/sr-aye) Secret Society - Logical Disorder (http://logicaldisorder.bandcamp.com/) New SpaceTime episodes every Wednesday! Hosted by Gabe Perez-Giz Made by Kornhaber Brown (www.kornhaberbrown.com)