The farther away we look, the closer in time we’re seeing towards the Big Bang. In the far future, there will be an enormous distance separating even the closest galaxies from the local group, but with enough motivation and a little luck, even a far-future civilization, in a universe dominated by dark energy, could still uncover the Big Bang origin of the universe. (Credit: Robin Dienel/Carnegie Institution for Science)

Ask Ethan: Will dark energy cause the Big Bang to disappear?

If we were born trillions of years in the future, could we even figure out our cosmic history?

Ethan Siegel
Oct 8 · 11 min read

13.8 billion years ago, the universe as we know it ⁠ — full of matter and radiation, expanding and cooling and gravitating ⁠ — came into existence with the onset of the hot Big Bang. Today, we can see for…