Dark energy, making up 70% of the universe, causes its accelerating expansion. Gravitational waves, predicted by Einstein, were detected from colliding black holes. The Event Horizon Telescope imaged ...

This method agrees with estimates based on the motions of stars and galaxies. The mass of the entire universe can also be estimated by measuring how the expansion rate has changed since the Big Bang.

Einstein's 1917 paper, "Cosmological Considerations in the General Theory of Relativity," applied general relativity to the universe as a whole, establishing a firmer basis for cosmology. To create a ...

John von Neumann came about as close as humanly possible to embodying the Platonic ideal of a genius. Conversant in ancient Greek by age 6, the Hungarian made significant mathematical advances in his ...

An astrophysicist proposes a new model of the universe without dark matter and energy, but is his radical idea based in fact?

In a recent study published in the Astrophysical Journalletters, scientists confirmed something both exhilarating and unsettling: the universe is expanding in a way that defies our most trusted models ...

We just got the clearest snapshot yet of the first light that streamed through the Universe. The results? We now have a clearer window into the infancy of the Universe, revealing with greater ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The prevailing consensus in astrophysics is that the universe has ...