The biggest open problem in the foundations of physics is that Einsteinβs theory of gravity, General Relativity, does not cooperate with quantum mechanics. Physicists have tried to solve this issue by coming up with a theory of quantum gravity, but those theories fall apart when you need them most β inside of black holes and at the Big Bang. Recently, though, physicists published a new
That life might have come to earth traveling through outer space used to be a fringe theory called βpanspermiaβ. But in the past decade or so, we have seen an interesting shift in how scientists regard the idea. Letβs take at one new study that might support βpanspermia,β as well as other facts that support the theory.
The Fermi Paradox is the question of why we havenβt been contacted by any extraterrestrial species. In a recent paper, astrophysicists analyzed the paradox by instead examining how civilizations with the ability to send signals through space might develop. Unfortunately for us, their findings are quite bleak β but letβs take a look anyway.
MOND (Modified Newtonian Dynamics) is a theory of gravity that explains the physical phenomena we observe in galaxies with surprising accuracy, but it falls apart when itβs applied to galaxy clusters. The widely accepted dark matter theory, meanwhile, can apply to both. But according to new research by astrophysicists, observational data shows that our universe is full of more dead stars than we