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Is Dark Energy a lie? Timescape cosmology explained

Hi Spacecats, I'm Dr Maggie Lieu and welcome to my channel, where you can find all things space, astronomy and physics! Is the accelerated expansion of the universe an illusion? Could the mysterious force of dark energy not exist at all? In this video I talk about the mystery of dark energy, Why scientists invented it and the problems it creates. The Hubble Tension, why different measurements of the universe's expansion rate don't agree, and timescape cosmology, which may explain away dark energy. New research finds evidence suggesting the Timescape model might fit the data better than our best cosmological model Lambda CDM! Links: Original Timescape model paper: https://arxiv.org/abs/0909.0749 Timescape fit: https://academic.oup.com/mnrasl/artic... Media credits: Expansion of the Universe: Kornmesser/Calcada/NASA/ESA dark matter: ESA/HUBBLE Expansion: WFIRST/Lentz/Wiessinger/Gehrels Galaxy flythrough: ICRAR/GAMA/Parr/Swinbank/Norberg Filament: NASA/ESA/Calçada Cosmic web:NASA GDFC/Reddy/Zhai/Wang/Benson Special thanks to my YouTube Members: Annex Celestial, Wheely Big Bike Trip, Steven Yee, Anders Welander, Bill Fratt, David Brant, John Lewis, macgonzo, Christopher Senn, Gregory McCoy, Nigel Draper, Jordan Workshop, Tom Organ, Rico, Arcane Domain & macgonzo You can also sign up on my channel page to get access to perks:    / @spacemog   Support me through my shop: www.maggielieu.com/shop If you enjoyed the video, please consider by liking, sharing and subscribing! I'm also on: twitter:   / space_mog   instagram:   / space_mog   facebook:   / spacemog