An Alternative to Dark Matter?

Models of the universe’s early days have only been possible with dark matter as a variable, but we still don’t have proof that dark matter exists. But recently, scientists may have found a way to replicate the results without the presence of the elusive matter. Plus, we’re leaking our DNA out in space!

Hosted By: Hank Green

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Sources:
https://physics.aps.org/articles/v14/143
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.127.161302 (paywall)
https://arxiv.org/abs/2007.00082 (open)

https://www.heart.org/en/news/2021/10/20/spaceflight-caused-dna-to-leak-out-of-astronauts-cell-powerhouse
https://www.ahajournals.org/doi/full/10.1161/JAHA.121.022055 (open)

Image Sources:
https://commons.wikimedia.org/wiki/File:Whirlpool_galaxy.png
https://flickr.com/photos/25053835@N03/19030866396
https://www.nasa.gov/mission_pages/chandra/news/a-new-twist-in-the-dark-matter-tale.html
https://www.nasa.gov/content/hubble-sees-a-smiling-lens
https://imagine.gsfc.nasa.gov/observatories/satellite/wmap/
https://commons.wikimedia.org/wiki/File:PIA16874-CobeWmapPlanckComparison-20130321.jpg
https://www.nasa.gov/feature/goddard/2021/nasa-s-webb-will-use-quasars-to-unlock-the-secrets-of-the-early-universe
https://www.nasa.gov/feature/making-sense-of-the-big-bang-wilkinson-microwave-anisotropy-probe
https://commons.wikimedia.org/wiki/File:Planck_satellite_cmb.jpg
https://www.nasa.gov/feature/jpl/galaxy-clusters-reveal-new-dark-matter-insights
https://www.istockphoto.com/photo/3d-illustration-of-dna-molecule-gm1217595729-355475529
https://commons.wikimedia.org/wiki/File:Jessica_Meir_and_Christina_Koch_inside_the_Quest_airlock.jpg
https://commons.wikimedia.org/wiki/File:Space_body_fluid.svg
https://commons.wikimedia.org/wiki/File:Victor_Glover_works_on_US_spacesuit_maintenance_inside_the_Quest_airlock_02.jpg
https://commons.wikimedia.org/wiki/File:Mitochondrial_DNA_lg.jpg
https://www.istockphoto.com/photo/mitochondria-cellular-organelles-produce-energy-cell-energy-and-cellular-respiration-gm1227573995-362103955
https://www.istockphoto.com/photo/diagonal-test-tubes-with-blood-gm1084064440-290845255
https://www.nasa.gov/hhp/medical-examination-requirements
https://www.istockphoto.com/photo/mitochondrion-gm681345840-124894359
https://commons.wikimedia.org/wiki/File:Earth_Eastern_Hemisphere.jpg
https://www.nasa.gov/hhp/medical-examination-requirements