Most of us have never been to space, but we wonder what it's like. What does it take to become a NASA astronaut? What do astronauts do while in space?

Covered in feathers, running faster than cars, and living in cold climates...these are just a few of the ideas introduced in Jurassic World: Dominion. Are these features backed by science? What can we know about dinosaurs from the fossils we study? What did the movie get right?

In his book On the Origin of Species, Charles Darwin outlined the theory of evolution by means of natural selection. But what was Darwin’s purpose behind such an idea? And how did this concept permeate the scientific community so thoroughly?

Charles Darwin compared natural selection to a human breeder, but the analogy has faced substantial criticism, even from within Darwinian camps. What exactly is natural selection supposed to be? Has it been measured, quantified, or even observed?