Autoflight systems work by sending signals to a flight control system. The pilot inputs information that allows the plane to hold a specific direction or altitude.
It is possible to regenerate parts of the brain with stem cells, just like we can in other organs.
Paleontologists look at species from the past and can never examine directly whether they can interbreed. So they have to go by what fossils look like, by the creature’s physical form.
On this day in 1958, President Dwight D. Eisenhower signed the National Aeronautics and Space Act, which established NASA. Here are 60 years worth of NASA's biggest accomplishments and discoveries.
In football, blockers use their center of gravity to stay balanced so they can make space for a runner to run for a touchdown.
The question "Can people have the abilities of animals?" brings up all kinds of interesting issues about who we are as humans and how we compare to other animals.
On June 23, 1988, James Hansen told Congress and the world that global warming wasn't approaching — it had already arrived. Thirty years later, it's clear that Hansen and other doomsayers were right.