Why Vera Rubin Deserved a Nobel
As we look back on 2016, and perhaps fret about 2017, we can take some solace in the remarkable things we know and continue to learn about the universe. In addition to a better understanding of the 5 percent of matter that has been well studied and understood, scientists are unlocking mysteries about the rest — 25 percent of it dark matter, and the remaining 70 percent dark energy.
Dark matter interacts gravitationally the way that ordinary matter does — clumping into galaxies and galaxy clusters, for example — but we call it “dark” because it doesn’t interact, in any perceptible way, with light.… Seguir leyendo »