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Showing posts with the label Cosmology

The Big Rip and the First Tee

The telescope (Celestron) sits quietly under its cover, temporarily blinded by Southern California's annual meteorological hostage situation – June Gloom. Somewhere above that thick gray ceiling, photons that began their journey before humans appeared are streaming across the cosmos, only to be intercepted by a marine layer that seems to have veto power over astronomy. Instead of observing the universe, I find myself imagining – The End of Everything (Astrophysically Speaking) by physicist Katie Mack. According to modern cosmology, the universe may eventually end in a Big Rip, a Big Crunch, Heat Death, Vacuum Decay, or some other catastrophe that sounds suspiciously like a rejected heavy-metal album title. Astrophysicists spend their careers calmly discussing the possibility that reality itself could suddenly cease to exist because a quantum field had a bad day. It's a remarkable way to start a Saturday morning. One moment you're contemplating the ultimate fate of spacetime...