Test yourself! How well can you solve some of the biggest cosmic puzzles? You get one clue: redshift.
SUBSCRIBE: https://www.youtube.com/WhatThePhysics?sub_confirmation=1
Host, Producer: Greg Kestin
Filming: Greg Kestin
Research, Writing: Greg Kestin, Samia Bouzid
Editing, Animating: Daniel Thomson
Editorial Input from: Julia Cort, Ari Daniel
Science consultant: Susana Deustua
Media: Shutterstock, NASA, ESA
Special thanks: Entire NOVA team
From the producers of PBS NOVA © WGBH Educational Foundation Funding provided by FQXi Music provided by APM
Music: APM
