Science
“Echo Mapping” Light Bursts From Supermassive Black Holes in Faraway Galaxies to Measure Vast Cosmic Distances – SciTechDaily
Matter swirling around supermassive black holes creates bursts of light that “echo” in nearby dust clouds. These traveling signals could serve as a new cosmic y…
Black hole accretion disk and torus. Credit: NASA/JPL-Caltech
Matter swirling around supermassive black holes creates bursts of light that “echo” in nearby dust clouds. These traveling signals could serve as a new cosmic yardstick.
When you look up at the night sky, how do you know whether the specks of light that you see are bright and far away, or relatively faint and close by? One way to find out is to compare how much light the object actually emits with how bright it appears. The differen…
-
Noosa News11 hours agoSuncorp Stadium upgrades to rival Sydney as seat capacity and infrastructure prioritised
-
Business14 hours agoDroneShield announces new $13 million counter-drone facility as employees top 400
-
General24 hours agoAn open letter to pro-Palestinian protesters
-
Noosa News13 hours agoBrisbane news live: 80,000 green bins rolled out | Residents told to prepare for ‘violent’ summer storms | Council declares water safe for swimming despite dead fish