If the universe sprung into existence and then expanded exponentially, you get gravitational waves traveling through space-time. These would fill the... →
Neil Turok
We inhabit a universe that is characterized by diversity.
Desmond Tutu
The universe can take quite a while to deliver.
We are part of this universe; we are in this universe, but perhaps more important than both of those facts, is that the universe is in us.
Neil deGrasse Tyson
Our galaxy, the Milky Way, is one of 50 or 100 billion other galaxies in the universe. And with every step, every window that modern astrophysics has... →
Those who see the cosmic perspective as a depressing outlook, they really need to reassess how they think about the world. Because when I look up in... →
Philosophically, the universe has really never made things in ones. The Earth is special and everything else is different? No, we've got seven... →
I want people to see that the cosmic perspective is simultaneously honest about the universe we live in and uplifting, when we realize how far we... →
Any astrophysicist does not feel small looking up at the universe; we feel large.
We account for one-sixth of the forces of gravity we see in the universe. There is no known objects accounting for most of the effective gravity in... →