Five Stages…

Topics: Astrophysics, Cosmology, Einstein, General Relativity, Star Trek Note: One of the things you find out about sophomore, or junior year in physics is faster-than-light travel violates causality: the arrow of time points forward, not in “loop-de-loop.” Thus, we can suspend belief as every version of Trek did time travel episodes, because superluminal speeds wouldContinue reading “Five Stages…”

Black Hole Storm…

Topics: Astrophysics, Black Holes, Cosmology, Einstein, General Relativity Note: From comments on a previous post, maybe science writers need to work on their chosen list of metaphors? In the far reaches of the Universe, a supermassive black hole is throwing a tantrum. It’s blowing a tremendous wind into intergalactic space, and we’re seeing the stormContinue reading “Black Hole Storm…”

Volume of Chaos…

Topics: Astronomy, Astrophysics, Cosmology Physicists have spent centuries grappling with an inconvenient truth about nature: Faced with three stars on a collision course, astronomers could measure their locations and velocities in nanometers and milliseconds and it wouldn’t be enough to predict the stars’ fates.  But the cosmos frequently brings together trios of stars and black holes.Continue reading “Volume of Chaos…”

Panspermia…

Topics: Astrobiology, Biology, Cosmology, SETI Life, for all its complexities, has a simple commonality: It spreads. Plants, animals, and bacteria have colonized almost every nook and cranny of our world. But why stop there? Some scientists speculate that biological matter may have proliferated across the cosmos itself, transported from planet to planet on wayward lumpsContinue reading “Panspermia…”

Antistars…

Topics: Astronomy, Astrophysics, Cosmology, High Energy Physics Fourteen possible antimatter stars (“antistars”) have been flagged up by astronomers searching for the origin of puzzling amounts of antihelium nuclei detected coming from deep space by the Alpha Magnetic Spectrometer (AMS-02) on the International Space Station. Three astronomers at the University of Toulouse – Simon Dupourqué, LuigiContinue reading “Antistars…”