Cosmic Microwave Background
what is gravity?
Theoretical Physicist Erik Verlinde Says We Don’t Need Dark Matter to Explain the Universe
Watch Verlinde deliver a talk on his "new view" on gravity tonight.
All in Your Head
Why Is There a Mysterious Supervoid in the Middle of the Universe?
A big ‘ol sphere of nothingness 1.8 billion light years across might explain a longstanding mystery about the formation of the universe—but its existence is a mystery in itself.