The Universe is expanding in all directions, all the time - and it has been doing so for about 13.8 billion years. And yet physicists are still unable to explain what Dark Energy - the mysterious force powering this expansion - actually is, where it comes from and why we aren’t able to measure it.
What if, instead, the universe is static — but everything in it is shrinking?
Turns out this alternative to the Big Bang has already been thought of by scientists — and more often by conspiracy theorists. So is it true? And if not, what does proving it wrong tell us about the universe as it actually is?
(H/T Universe Today)