One of the Holy Grails in cosmology is a look back at the earliest epochs of cosmic history. Unfortunately, the universe's first few hundred thousand years are shrouded in an impenetrable fog. So far, nobody's been able to see past it to the Big Bang. As it turns out, astronomers are chipping away a t that cosmic fog by using data from the Atacama Cosmology Telescope (ACT) in Chile. ...read more read less