What Does Dark Energy Really Do?
Dark energy, what exactly does it do? Find out in this episode of Space Time! Part 3 in our Dark Energy series. Part 1: https://www.youtube.com/watch?v=xZTb6sfHEX8 Part 2: https://www.youtube.com/watch?v=-4PayaEgEZc ____________________________________________________________ Get your own Space Time tshirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g How does dark energy affect the universe s expansion? Measuring past expansion history should tell us the future expansion without ever having to count any galaxies. To measure this we need to measure the redshift-distance relationship, which we will talk about in detail in this episode. Written and hosted by Matt O’Dowd Made by Kornhaber Brown (www.kornhaberbrown.com) Comments Pravar Parekh https://www.youtube.com/watch?v=-4PayaEgEZc&lc=z13yy1xzenqrj1tnp22etlby2syevrie4 Yeshwanth Vejendla https://www.youtube.com/watch?v=-4PayaEgEZc&lc=z13pvhdpjrfcsl14u04ce3dgrzy5frjqb34 Thomas Waclav (Ceasar) https://www.youtube.com/watch?v=-4PayaEgEZc&lc=z13fcd5quk3svhbp304cfdjbwwndihnqwj0 Austin Pinheiro https://www.youtube.com/watch?v=-4PayaEgEZc&lc=z12zgtdockbruxrih04cib2qwqfhgnrxjk00k ____________________________________________________________ White dwarf supernova simulation from "Three-Dimensional Simulations of the Deflagration Phase of the Gravitationally Confined Detonation Model of Type Ia Supernovae", Jordan et al., 2007, http://arxiv.org/abs/astro-ph/0703573 Supernova Cosmology Project: Perlmutter et al. 1999, http://arxiv.org/abs/astro-ph/9812133 High-Z Supernova Search Team: Riess et al. 1998, http://arxiv.org/abs/astro-ph/9805201
