
AstroAhura This is one of my favorite animations on how to think about galaxy images across the observable universe (if humans aged over 13.4 billion years!)
From a 2013 episode of NHK’s Cosmic Front on the first stars featuring @annafrebel, @astro_nino, @LordMartinRees, myself, and others pic.twitter.com/U1a9HF5S9G