There are still several fascinating mysteries of our universe unsolved by scientists even after decades and even centuries of research! Join Olivia Gordon for a new episode of SciShow and learn about these seven weird phenomena that remain a mystery! 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 ---------- Dooblydoo thanks go to the following Patreon supporters: Alex Schuerch, 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 ---------- 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: Ball Lightning https://phys.org/news/2012-10-mystery-ball-lightning.html https://www.scientificamerican.com/article/periodically-i-hear-stori/ https://www.livescience.com/61946-ball-lightning-quantum-particle.html https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.048501 https://www.researchgate.net/publication/252000845_The_Riddle_of_Ball_Lightning_A_Review https://books.google.com/books?id=TCTpu1UVFsYC&pg=PA633#v=onepage&q&f=false Skyquakes http://www.bbc.com/future/story/20141202-mystery-booms-whats-the-cause http://www.seismosoc.org/Publications/SRL/SRL_82/srl_82-5_op/hill_op.html http://www.wnpr.org/post/loud-booms-caused-microearthquakes-seismologist-says Fast Radio Bursts https://www.skyandtelescope.com/astronomy-news/astronomers-trace-fast-radio-burst-to-a-surprising-source/ https://aasnova.org/2017/09/20/a-fast-radio-burst-every-second/ Star Jelly https://biomeecology.com/nature/2018/02/what-is-star-jelly/ https://io9.gizmodo.com/the-enduring-myth-of-star-jelly-1693997962 https://skeptoid.com/episodes/4299 https://www.nature.com/articles/083492a0 https://tandfonline.com/doi/abs/10.1080/0015587X.1984.9716316 https://link.springer.com/chapter/10.1007/978-3-319-05239-7_5 Forest Rings https://www.cbc.ca/news2/background/tech/science/forest-rings.html http://www.nrcresearchpress.com/doi/10.1139/b01-022#.XBEZdnpKj9R https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fulle.web&search1=R=210206 https://onlinelibrary.wiley.com/doi/abs/10.1111/1758-2229.12678 https://www.northernontariobusiness.com/industry-news/green/searching-for-gas-in-the-swampy-far-north-364148 Hessdalen Lights https://www.researchgate.net/profile/Massimo_Teodorani/publication/228609015_A_long-term_scientific_survey_of_the_Hessdalen_phenomenon/links/55141e340cf283ee0834a6a5.pdf https://www.nature.com/webcasts/event/optical-trapping-of-ion-coulomb-crystals/ https://io9.gizmodo.com/what-causes-the-hessdalen-lights-1653174566 Desert Varnish http://minerals.gps.caltech.edu/FILES/VARNISH/Index.html https://www.nps.gov/articles/desertvarnish.htm https://www.sciencemag.org/news/2006/07/solving-mystery-desert-varnish https://www.theguardian.com/science/2013/apr/14/shadow-biosphere-alien-life-on-earth Images: https://commons.wikimedia.org/wiki/File:Ball_lightning.jpg https://commons.wikimedia.org/wiki/File:Ball_lightning.png https://commons.wikimedia.org/wiki/File:F-18_Hornet_performs_a_fly_by_on_the_USS_Dwight_D._Eisenhower.jpg https://commons.wikimedia.org/wiki/File:%D8%B2%D8%AE%D8%A9_%D8%B4%D9%87%D8%A8_%D8%A7%D9%84%D8%A8%D8%B1%D8%B4%D8%A7%D9%88%D9%8A%D8%A7%D8%AA.jpg https://commons.wikimedia.org/wiki/File:Gashydrat_im_Sediment.JPG https://commons.wikimedia.org/wiki/File:Tetrakaidecahedral_methane_clathrate1.png https://www.videoblocks.com/video/slow-motion-time-lapse-of-clouds-rolling-in-the-sky-q9s8c4z https://freesound.org/people/bajko/sounds/399656/ https://vimeo.com/146295242 - https://public.nrao.edu/media-use/ https://svs.gsfc.nasa.gov/13058 https://svs.gsfc.nasa.gov/11530 https://svs.gsfc.nasa.gov/20267 https://commons.wikimedia.org/wiki/File:Star_jelly_-_lindsey.jpg https://www.geograph.org.uk/photo/3777341 https://svs.gsfc.nasa.gov/12602 https://www.geograph.org.uk/photo/3889121 https://www.geograph.org.uk/photo/1214339 https://commons.wikimedia.org/wiki/File:Frog_in_frogspawn.jpg https://commons.wikimedia.org/wiki/File:Yellow_slime_mold.jpg https://commons.wikimedia.org/wiki/File:Goldgelber_Zitterling_-_Tremella_mesenterica_-_yellow_brain_-_Tr%C3%A9melle_m%C3%A9sent%C3%A9rique_-_golden_jelly_fungus_-_01.jpg https://www.flickr.com/photos/adonofrio/6268871099 - www.biology101.org https://commons.wikimedia.org/wiki/File:Cyanobacteria_Nostoc_commune.jpg https://commons.wikimedia.org/wiki/File:Boreal_Forest_Ring.jpg https://www.youtube.com/watch?v=Wk842pg0Pvs https://commons.wikimedia.org/wiki/File:Desert_varnish.jpg https://commons.wikimedia.org/wiki/File:Valley_of_Fire_petroglyphs.jpg