daaswag.blogg.se - The end of everything by katie mack

You can calculate a time in the future at which the entire universe would be ripped apart. Finding meaning in an accidental universeĪnd you can work out that the way that it acts on the universe as a whole is that it rapidly expands and expands and expands it to the point where you can calculate a date based on certain characteristics of the theory.

Yale astrophysicist on unlocking the mystery of black holes and dark matter.

It starts to build up inside objects, inside bound structures like galaxies and solar systems, but also solid objects like planets and stars. It's something that is just a property of space.īut if it's something that changes over time and gets more powerful over time, if the amount of dark energy and every little bit of space builds up over time, then it doesn't just move galaxies away from each other, it starts to expand galaxies from within. And our best guess at the moment is that it's a cosmological constant. The Big Rip is a possibility where dark energy goes wrong.ĭark energy is some mysterious stuff that seems to be present throughout the universe, that's making the universe expand faster. But there's another apocalyptic possible fate of the universe that you write about called The Big Rip.

You talk about the Big Crunch, Heat Death and Vacuum Decay - they all sound so apocalyptic. Here is a short excerpt of their conversation: Mack spoke with IDEAS host Nahlah Ayed about the the theories of the universes eventual demise. In her book, The End of Everything (Astrophysically Speaking), she explores the mind-bending science behind different end-of-universe scenarios, and also ponders the meaning of existence when nothing - not even the universe, will last forever. She studies the possible fates of the universe. Katie Mack is a theoretical astrophysicist at the Perimeter Institute for Theoretical Physics in Waterloo, Ontario. In about five billion years, the sun will scorch the earth to a crisp - unless humans finish off the job before the sun has a chance to. Since it had a beginning, it will have an ending. Ideas 53:59 The End of Everything: Katie MackĬosmologists aren't sure how the universe will end, but they're pretty confident that it will.