From CNN, April 6, 2019: Fermilab scientist Don Lincoln explains a result from the GRAVITY collaboration, which put Einstein’s theory of relativity to the test, making measurements of light near a black hole.
A global network of telescopes has been working to capture the first ever image of a black hole. On Wednesday, April 10, at 8 a.m. CDT, the National Science Foundation will hold a press conference to announce a groundbreaking result from the Event Horizon Telescope. Watch the press conference live stream online.
Deep in the dense core of a black hole, protons and electrons are squeezed together to form neutrons, sending ghostly particles called neutrinos streaming out. Matter falls inward. In the textbook case, matter rebounds and erupts, leaving a neutron star. But sometimes, the supernova fails, and there’s no explosion; instead, a black hole is born. Scientists hope to use neutrino experiments to watch a black hole form.
Scientists of the Pierre Auger Collaboration announced today (Nov. 8) that active galactic nuclei are the most likely candidate for the source of the highest-energy cosmic rays that hit Earth.