Resumen de Star dust casts a cloud over big bang waves
Ashes from an exploding star may have left their mark on ancient cosmic light. Last month, the team running the BICEP2 telescope at the South Pole reported seeing a pattern in the way the light left over from the big bang, known as the cosmic microwave background, was polarized or aligned. The team attributed the pattern to ancient gravitational waves, ripples in space-time thought to have been caused by space expanding faster than the speed of light just after the universe's birth.
