By now, you’ve probably heard about the Chinese space station, Tiangong-1, which is spiralling in an uncontrolled descent into the atmosphere. Two years ago, the Chinese announced that they had stopped communicating with the station and were monitoring its descent. Now, it is set to finally plunge into the atmosphere likely sometime this weekend. WATCH: […]
Stephen Hawking changed our perception of black holes and the Big Bang. Here’s how he changed my life.
Stephen Hawking overcame the loss of his working limbs and voice to become the best-known theoretical physicist of his era, upending the scientific consensus that nothing escapes the intense gravity of black holes. Earning countless honors, he used his fame to appeal for saving the Earth. Science correspondent Miles O’Brien joins Hari Sreenivasan to remember […]
Birth of first stars, clues about dark matter revealed by new radio astronomy technique
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 […]
Hubble, most of world’s telescopes likely have glitch, new study finds
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 […]
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