The Impossible Element Hiding in the Sun

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Not all of the naturally occurring elements were discovered here on Earth. Helium was discovered by examining sunlight, and that same technique is now teaching us about the composition of distant galaxies.

Hosted by: Reid Reimers

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Sources:

https://www.worldscientific.com/worldscibooks/10.1142/p371
https://royalsocietypublishing.org/doi/10.1098/rspl.1895.0006
https://www.chemistryworld.com/features/150-years-of-helium/3009232.article
https://www.ucalgary.ca/news/utoday/april28-2010/earth

Images:

https://en.wikipedia.org/wiki/File:DIMendeleevCab.jpg
https://en.wikipedia.org/wiki/File:Dmitry_Mendeleyev_Osnovy_Khimii_1869-1871_first_periodic_table.jpg
https://commons.wikimedia.org/wiki/File:Sz%C3%ADnsz%C3%B3r%C3%B3d%C3%A1s_prizm%C3%A1n1.jpg
https://commons.wikimedia.org/wiki/File:Fraunhofer_lines.svg
https://commons.wikimedia.org/wiki/File:Sodium_spectrum_visible.png
http://www.thinkstockphotos.com/search/#/f=PICHVX/M||825810902
https://en.wikipedia.org/wiki/File:Solar_eclipse_1999_4_NR.jpg
https://commons.wikimedia.org/wiki/File:Helium_spectrum_visible.png
https://svs.gsfc.nasa.gov/12850
http://www.thinkstockphotos.com/image/stock-illustration-collection-of-vector-royal-crowns-for/958687442

Thumbnail: https://svs.gsfc.nasa.gov/11721

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Our First Glimpse of a Newborn Supernova? | SciShow News

A super bright flash in the sky might be the birth of a supernova remnant and it turns out there’s more than one way to build a binary star system.

Host: Hank Green

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Sources:
https://arxiv.org/pdf/1810.10880.pdf
https://arxiv.org/pdf/1810.10720.pdf
http://www.caltech.edu/news/what-astronomers-are-gleaning-big-blast-called-cow-84911
http://growth.caltech.edu/news-at2018cow.html
http://keckobservatory.org/cow
https://www.eurekalert.org/pub_releases/2019-01/nu-boa010319.php
https://www.eurekalert.org/pub_releases/2019-01/aouf-uso010719.php
http://www.astronomy.com/news/2019/01/astronomers-capture-birth-of-black-hole-or-neutron-star-a-first
https://www.sciencemag.org/news/2019/01/astronomers-still-cant-decipher-cow-mysterious-explosion-deep-space
https://www.lsst.org/

https://www.eurekalert.org/emb_releases/2019-01/uow-dss011019.php
https://press.nature.com/wp-content/uploads/files/2019/01/41550_2018_667_OnlinePDF.pdf
——–
Images:
https://www.eso.org/public/images/potw1709a/
https://commons.wikimedia.org/wiki/File:AT2018cow-context_244.000927647_%2B22.2680094118_20180627.jpg
https://www.eurekalert.org/multimedia/pub/189524.php
https://www.eurekalert.org/multimedia/pub/189664.php?from=416805
https://www.istockphoto.com/vector/abstract-bright-rainbow-blurred-background-gm878137448-244928765
https://www.spacetelescope.org/videos/hubblecast64b/
https://www.eurekalert.org/multimedia/pub/190012.php
https://www.eurekalert.org/multimedia/pub/190013.php?from=417230
https://www.jpl.nasa.gov/news/news.php?feature=7314

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Why Does It Take So Long to Get to Mercury?

On a cosmic scale, Mercury isn’t very far away, but it’s incredibly hard to get there. Getting into orbit around it takes years of flybys in the solar system, but we’re going to do it again!

Hosted by: Reid Reimers

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Sources:

https://nssdc.gsfc.nasa.gov/planetary/factsheet/
https://solarsystem.nasa.gov/missions/bepicolombo/in-depth/
https://solarsystem.nasa.gov/planets/mercury/overview/
https://www.space.com/42205-why-its-hard-to-get-to-mercury-for-bepicolombo.html
https://www.nytimes.com/2018/10/19/science/bepicolombo-mercury-launch.html
https://www.technologyreview.com/the-download/612330/two-new-probes-could-help-us-solve-mercurys-mysteries/
https://www.theverge.com/2018/10/19/17994206/esa-jaxa-bepicolombo-mercury-orbiter-mission-spacecraft-launch
https://www.youtube.com/watch?v=0Yp-q1wqgig
https://www.bbc.com/news/science-environment-45838991
https://www.nasa.gov/mission_pages/messenger/main/index.html
http://sci.esa.int/bepicolombo/33022-summary/?fbodylongid=1102
https://www.space.com/2791-pluto-demoted-longer-planet-highly-controversial-definition.html
http://www.planetary.org/explore/space-topics/space-missions/missions-to-venus-mercury.html
http://messenger.jhuapl.edu/Resources/Publications/Yen.2001.pdf

Images:

https://solarsystem.nasa.gov/resources/532/mercury-false-color-rotation-movie/?category=planets_mercury
https://en.wikipedia.org/wiki/File:Planets2013.svg
https://en.wikipedia.org/wiki/File:Size_planets_comparison.jpg
https://svs.gsfc.nasa.gov/4461
https://svs.gsfc.nasa.gov/12268
https://commons.wikimedia.org/wiki/File:Mariner10.gif
https://en.wikipedia.org/wiki/File:PIA03101_Mercury%27s_Southern_Hemisphere.jpg
https://en.wikipedia.org/wiki/File:Mariner_10_gravitational_slingshot.jpg
https://svs.gsfc.nasa.gov/10865
https://en.wikipedia.org/wiki/File:Mariner-10-Trajectory-first_half.PNG
https://en.wikipedia.org/wiki/File:MESSENGER_trajectory.svg
https://www.nasa.gov/mission_pages/messenger/multimedia/orbit_concept.html
https://svs.gsfc.nasa.gov/11544
https://en.wikipedia.org/wiki/File:BepiColombo_spacecraft_model.png
http://m.esa.int/spaceinimages/Images/2017/07/MPO_s_science_instruments3
https://m.esa.int/spaceinvideos/Videos/2017/07/Animation_visualising_BepiColombo_s_journey_to_Mercury CC BY-SA 3.0 IGO: https://creativecommons.org/licenses/by-sa/3.0/igo/
https://svs.gsfc.nasa.gov/20249
https://www.videoblocks.com/video/9-in-1-spaceship-ufo-pack-or-bundle-green-screen-clips-with-red-cropping-markers-featuring-realistic-alien-spacecraft-rendered-from-multiple-angles-4k-ultra-hd-full-hd-high-quality-hiuylv-aitee1zsq
https://www.videoblocks.com/video/space-1147-hghxm9llinal4ids

Thumbnail: https://www.nasa.gov/mission_pages/messenger/multimedia/orbit_concept.html

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We Just Landed on the Far Side of the Moon for the First Time! | SciShow News

The new year is off to a great start for space exploration! New Horizons has passed the farthest object ever visited by a spacecraft, and China put a lander on the dark side of the Moon!

Hosted by: Hank Green

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Sources:

https://eos.org/articles/new-horizons-sends-first-looks-of-2014-mu69
http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20190103
http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20190102

https://eos.org/articles/lander-gives-first-look-at-moons-farside
https://spacenews.com/change-4-relay-satellite-enters-halo-orbit-around-earth-moon-l2-microsatellite-in-lunar-orbit/
http://hyperphysics.phy-astr.gsu.edu/hbase/Mechanics/lagpt.html
https://mars.nasa.gov/mer/mission/comm_orbiters.html

Images:

http://pluto.jhuapl.edu/News-Center/Press-Conferences/index.php?page=2019-01-03
https://en.wikipedia.org/wiki/File:20180912_6258TPS-TPR-2018Q3-18-09-04-p14legacy.png
http://pluto.jhuapl.edu/News-Center/Press-Conferences/2019-01-03/960×540/Slide17.jpeg
https://en.wikipedia.org/wiki/File:NASA-NewHorizons-KuiperBelt-UltimaThule-20181227.jpg
http://pluto.jhuapl.edu/News-Center/Press-Conferences/2019-01-03/960×540/Slide13.jpeg
https://en.wikipedia.org/wiki/File:PIA21867-2014MU69-BinaryObject-ArtConcept-20170804.jpg
https://en.wikipedia.org/wiki/File:First_color_image_of_Ultima_Thule_(composite_crop).png
https://en.wikipedia.org/wiki/File:Pluto-01_Stern_03_Pluto_Color_TXT.jpg
https://en.wikipedia.org/wiki/File:An_artist%E2%80%99s_impression_of_the_hottest_and_most_massive_touching_double_star.jpg
https://en.wikipedia.org/wiki/File:Comet_67P_on_14_March_2015_%E2%80%93_NavCam.jpg
http://pluto.jhuapl.edu/News-Center/Press-Conferences/index.php?page=2019-01-03
http://pluto.jhuapl.edu/News-Center/Press-Conferences/2019-01-03/960×540/Slide24.jpeg
https://commons.wikimedia.org/wiki/File:South_Pole%E2%80%93Aitken_basin_on_the_Moon%27s_farside.png
https://commons.wikimedia.org/wiki/File:Change4_landing_site.png
https://en.wikipedia.org/wiki/File:Lagrange_points_simple.svg
https://commons.wikimedia.org/wiki/File:RelaisSatellit.png
https://en.wikipedia.org/wiki/File:Lagrangianpointsanimated.gif

Thumbnail: https://en.wikipedia.org/wiki/File:Back_side_of_the_Moon_AS16-3021.jpg

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Are There Planets More Habitable Than Earth?

Earth probably isn’t the best place in the universe. It turns out there might be even better places to live that are even more suitable for life: superhabitable planets.

Hosted by: Reid Reimers

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Sources:

https://www.liebertpub.com/doi/10.1089/ast.2013.1088
https://www.britannica.com/science/habitable-zone
https://arxiv.org/pdf/1007.3413.pdf
http://homepages.uc.edu/~sitkoml/AdvancedAstro/21_CHZs/CHZs.pdf
http://www.atlasoftheuniverse.com/startype.html
http://www.sci-news.com/astronomy/ultraviolet-superflares-exoplanet-habitability-young-red-dwarfs-06522.html
http://www.astronomy.villanova.edu/lward/index-old.htm
http://astronomy.swin.edu.au/cosmos/M/Main+Sequence+Lifetime
https://www.centauri-dreams.org/2014/01/27/what-makes-a-planet-superhabitable/
https://exoplanets.nasa.gov/

Images:

https://en.wikipedia.org/wiki/File:BlueMarble-2001-2002.jpg
https://www.nasa.gov/ames/kepler/habitable-zones-of-different-stars
https://svs.gsfc.nasa.gov/11538
https://exoplanets.nasa.gov/news/1349/giant-red-stars-may-heat-frozen-worlds-into-habitable-planets/
https://svs.gsfc.nasa.gov/20154
https://svs.gsfc.nasa.gov/12144
https://en.wikipedia.org/wiki/File:Morgan-Keenan_spectral_classification.svg
https://en.wikipedia.org/wiki/File:NASA-RedDwarfPlanet-ArtistConception-20130728.jpg
http://www.thinkstockphotos.com/image/stock-photo-desert-sand-dunes-road-at-sunset/639828572
http://www.thinkstockphotos.com/image/stock-photo-snowy-peaks/121716604
http://www.thinkstockphotos.com/image/stock-photo-scuba-diver-swimming-near-a-school-of-fish/57577096
https://en.wikipedia.org/wiki/File:Kepler442b(comp).jpg
https://www.videoblocks.com/video/cinemagraph-of-volcano-erupting-by-ocean-in-hawaii-by3dh_buzjd9ukn9o
https://svs.gsfc.nasa.gov/30687
https://commons.wikimedia.org/wiki/File:Kepler-22b,_Kepler-69c,_Kepler-62e,_Kepler-62f_and_Earth.jpg
https://svs.gsfc.nasa.gov/12850

Thumbnail: https://en.wikipedia.org/wiki/File:Kepler186f-ArtistConcept-20140417.jpg

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Future Space News of 2019

2019 will be a big year for the moon! Not only is it the 50th anniversary of the first moon landing, but our closest neighbor is receiving a bunch of new visitors this year.

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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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
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Sources:
http://www.sciencemag.org/news/2018/01/india-plans-tricky-and-unprecedented-landing-near-moon-s-south-pole
https://www.isro.gov.in/update/30-aug-2010/payloads-chandrayaan-2-mission-finalised
https://indianexpress.com/article/technology/science/isro-begins-flight-integration-activity-for-chandrayaan-2-as-scientists-tests-lander-and-rover-4905883/
http://www.planetary.org/blogs/emily-lakdawalla/2018/0813-chandrayaan-2-launch-delayed.html
https://bangaloremirror.indiatimes.com/bangalore/others/isro-successfully-conducts-crucial-test-ahead-of-chandrayaan-2s-launch/articleshow/66379169.cms
https://solarsystem.nasa.gov/missions/chandrayaan-2/in-depth/

https://www.bbc.com/news/world-middle-east-44777305
http://www.xinhuanet.com/english/2018-10/10/c_137523855.htm
http://www.spaceil.com/news/spaceil-designs-a-science-twist-to-its-mission-map-lunar-magnetism-op-ed-on-space-com/
http://www.spaceil.com/news/%D7%99%D7%A9-%D7%9C%D7%A0%D7%95-%D7%9E%D7%95%D7%A2%D7%93-%D7%A9%D7%99%D7%92%D7%95%D7%A8-%D7%95%D7%A0%D7%97%D7%99%D7%AA%D7%94/
https://www.space.com/27704-israeli-lunar-xprize-craft-to-study-magnetism.html?cmpid=514648

https://gbtimes.com/china-confirms-landing-site-change-5-moon-sample-return
http://www.planetary.org/blogs/guest-blogs/change4-launch-announced.html
https://nssdc.gsfc.nasa.gov/planetary/lunar/cnsa_moon_future.html
——-
Images:
https://www.jpl.nasa.gov/news/news.php?feature=7218
https://commons.wikimedia.org/wiki/File:Chandrayaan_2_Orbiter_and_Lander.jpg
https://commons.wikimedia.org/wiki/File:Chandrayaan_2_Rover.jpg
https://images.nasa.gov/details-PIA17669.html
https://www.flickr.com/photos/spacex/40126461851/
https://en.wikipedia.org/wiki/File:Spacecraft_03.jpg
https://images.nasa.gov/details-PIA00126.html
https://commons.wikimedia.org/wiki/File:Back_side_of_the_Moon_AS16-3021.jpg
https://en.wikipedia.org/wiki/File:Mons_R%C3%BCmker_Apollo_15.jpg
https://images.nasa.gov/details-GSFC_20171208_Archive_e001861.html

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3 of the Most Peculiar Supernovas

Massive stars die in fantastic explosions called supernovas. Most of them fit neatly into a few categories, but then there are the peculiars, a special group of supernovas that don’t quite fit in with the rest.

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Dooblydoo thanks go to the following Patreon supporters:
Alex Hackman, Andrew Finley Brenan, Lazarus G, 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
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Sources:
http://www.news.ucsb.edu/2015/015447/supernova-hits-star-results-shocking
https://arxiv.org/pdf/1604.05730.pdf
https://arxiv.org/pdf/1505.05158.pdf
https://www.nature.com/articles/nature14455
https://www.skyandtelescope.com/astronomy-news/type-ia-supernova-two-ways-0520201523/
http://askanastronomer.org/stars/2015/11/19/exploding-stars/
https://science.nasa.gov/science-news/science-at-nasa/2007/07may_bigsupernova
http://www.solstation.com/x-objects/sn2006gy.htm
https://arxiv.org/pdf/astro-ph/0612617.pdf
https://www.universetoday.com/64655/a-new-kind-of-supernova-explodes-in-unusual-way/
http://www.atnf.csiro.au/outreach/education/senior/astrophysics/stellarevolution_deathhigh.html
https://arxiv.org/pdf/0906.2003.pdf
Curtis McCully (postdoc at Las Cumbres Observatory)
——
Images:
https://www.spacetelescope.org/videos/hubblecast64b/
https://www.eso.org/public/videos/eso1505a/
https://svs.gsfc.nasa.gov/10532
https://www.nasa.gov/ames/kepler/nasa-spacecraft-capture-rare-early-moments-of-baby-supernovae
https://www.eso.org/public/images/eso0731b/
https://www.eso.org/public/images/eso1505a/
https://commons.wikimedia.org/wiki/File:Sn2006gy_CHANDRA_x-ray.jpg
https://commons.wikimedia.org/wiki/File:SN2006gy.jpg
https://www.spacetelescope.org/images/potw1820a/
https://www.spacetelescope.org/images/opo1528a/
https://www.nasa.gov/mission_pages/chandra/exploded-star-blooms-like-flower-photo.html

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Get Ready: New Horizons Is Approaching Its Next Target | SciShow News

New Horizons is on its way to Ultima Thule, the most distant object a spacecraft has ever visited. And scientists have created the sugar component of DNA under extraterrestrial conditions.

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Dooblydoo thanks go to the following Patreon supporters:
Alex Hackman, Andrew Finley Brenan, Lazarus G, 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
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Sources:
http://www.planetary.org/blogs/jason-davis/2018/nh-ut-100days.html
http://pluto.jhuapl.edu/Mission/Where-is-New-Horizons.php
http://pluto.jhuapl.edu/Mission/The-Path-to-Ultima-Thule.php
https://appel.nasa.gov/2018/09/26/new-horizons-homes-in-on-ultima-thule/

https://www.nature.com/articles/s41467­018­07693­x
http://www.ifa.hawaii.edu/tops/meteorite02.html
https://science.nasa.gov/ems/10_ultravioletwaves
https://ares.jsc.nasa.gov/meteorite-falls/what-are-meteorites/
——
Images:
https://images.nasa.gov/details-PIA09113.html
https://www.nasa.gov/press-release/nasa-announces-media-activities-for-new-horizons-new-year-s-kuiper-belt-flyby
https://en.wikipedia.org/wiki/File:2014_MU69_size_comparison_01.jpg
https://commons.wikimedia.org/wiki/File:Thule_carta_marina_Olaus_Magnus.jpg
https://www.nasa.gov/feature/ultima-in-view-nasa-s-new-horizons-makes-first-detection-of-kuiper-belt-flyby-target
https://commons.wikimedia.org/wiki/File:2014_MU69_orbit.jpg
https://en.wikipedia.org/wiki/File:PIA21868-2014MU69-SingleObject-ArtConcept-20170804.jpg
https://en.wikipedia.org/wiki/File:PIA21867-2014MU69-BinaryObject-ArtConcept-20170804.jpg
https://solarsystem.nasa.gov/resources/255/artist-concept-flying-by-mu69/?category=solar-system/kuiper-belt_2014-mu69
https://www.istockphoto.com/photo/meteorite-cross-section-gm172260885-3896432
https://www.eso.org/public/images/eso1740a/
https://en.wikipedia.org/wiki/File:D-dexoyribose_chain.png
https://en.wikipedia.org/wiki/File:DNA_chemical_structure.svg
https://www.eso.org/public/images/eso1109a/
https://www.istockphoto.com/photo/comet-gm153984222-21672453

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Why It’s So Hard to Land on Mars

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We’ve sent more spacecraft to Mars than any other planet, but around half of the probes that have ever attempted to explore Mars have either crashed or disappeared.

Hosted by: Reid Reimers

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Sources:

https://www.space.com/25497-how-mars-landings-work-infographic.html
https://mars.nasa.gov/mars2020/mission/overview/
https://youtu.be/Ki_Af_o9Q9s
http://newscenter.lbl.gov/2017/02/22/building-heat-shield-mars-mission/
http://www.planetary.org/blogs/emily-lakdawalla/2012/06221711-how-curiosity-land-part-1.html
https://mars.nasa.gov/mars2020/mission/timeline/entry-descent-landing/
https://phys.org/news/2018-03-success-largest-mars-mission-parachute.html
https://mars.nasa.gov/mer/mission/spacecraft_edl_aeroshell.html
https://mars.nasa.gov/mer/mission/spacecraft_edl_parachute.html
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19650020588.pdf
https://www.space.com/16777-curiosity-rover-many-mars-missions.html
https://mars.nasa.gov/programmissions/missions/log/
https://blogs.scientificamerican.com/guest-blog/sky-crane-how-to-land-curiosity-on-the-surface-of-mars/
https://www.nasa.gov/pdf/737628main_Final_LDSD_Fact_Sheet_3-26-13.pdf

Images:

https://svs.gsfc.nasa.gov/13016
https://en.wikipedia.org/wiki/File:NASA-Apollo8-Dec24-Earthrise.jpg
https://images.nasa.gov/details-GRC-2017-CM-0124.html
https://en.wikipedia.org/wiki/File:Mars_atmosphere.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA14834
https://svs.gsfc.nasa.gov/12962
https://www.nasa.gov/mission_pages/mars/images/msl0153-20090422.html
https://youtu.be/XvVOgS9jWn0?t=1673
https://www.youtube.com/watch?v=P4boyXQuUIw
https://mars.nasa.gov/mars2020/multimedia/videos/?v=399
https://svs.gsfc.nasa.gov/13016

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No, We Did Not Just Solve Dark Matter and Dark Energy | SciShow News

A paper published last week proposed a hypothesis that identified 95% of the missing stuff in the universe, but the headlines have been a little over-hyped.

Hosted by: Hank Green

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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Dooblydoo thanks go to the following Patreon supporters:
Alex Hackman, Andrew Finley Brenan, Lazarus G, 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
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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
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Sources:

https://www.eurekalert.org/pub_releases/2018-12/uoo-bbt120318.php
https://www.aanda.org/articles/aa/pdf/2018/12/aa32898-18.pdf
https://www.wired.co.uk/article/dark-fluid-theory-of-dark-matter-energy
http://backreaction.blogspot.com/2018/12/no-negative-masses-have-not.html
https://twitter.com/seanmcarroll/status/1071066682234261504

Images:

https://svs.gsfc.nasa.gov/12307
https://svs.gsfc.nasa.gov/12233
https://svs.gsfc.nasa.gov/12433
https://svs.gsfc.nasa.gov/11894

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