Some of the most ancient light has been detected, giving the stars their birthdate, helping characterize dark matter, and opening up a new field of astronomy. The Early Universe The oldest light we can see is the cosmic microwave background, the remnant hiss of the universe’s massive expansion following the Big Bang. After that, the […]
A newly discovered error in the way electronic systems record light casts doubt on data collected by many of the world’s telescopes–and even those off-world, like the Hubble Space Telescope. WATCH: Miles revisits the time the Hubble had a different technical issue, right after it launched. An international team of astrophysicists discovered the glitch while […]
Concessions granted don’t go far enough, opponents say.
PBS NewsHour segment, aired 9/13/17.