The Most Metal Planet Fragment Ever

Scientists have discovered a shard of a planet that survived the death of its star and TESS has found the first direct evidence of an exocomet. Host: Hank Green 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: Adam Brainard, Greg, Alex Hackman. 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://arxiv.org/pdf/1904.02163.pdf https://www.eurekalert.org/pub_releases/2019-04/uow-hmp040119.php https://www.nytimes.com/2019/04/04/science/white-dwarf-fragment.html https://arxiv.org/pdf/1903.11071.pdf https://www.sciencealert.com/nasa-s-new-planet-hunter-has-detected-its-first-exocomet-orbiting-an-alien-star https://www.eso.org/public/archives/releases/sciencepapers/eso1432/eso1432a.pdf http://blogs.discovermagazine.com/d-brief/2019/04/04/tess-exocomet-brightest-star/#.XKjxvVNKiRt https://academic.oup.com/mnras/article-abstract/482/4/5587/5173081 ------- Images: https://www.eurekalert.org/multimedia/pub/197160.php https://svs.gsfc.nasa.gov/20272 https://commons.wikimedia.org/wiki/File:Emission_spectrum-Fe.svg https://svs.gsfc.nasa.gov/13022 https://images.nasa.gov/details-PIA20698.html https://www.eso.org/public/videos/eso1432a/