Perry Samson was helping students conduct field experiments on supercell storms in Kansas in 2008 when one suddenly turned into a tornado and dragged him in.

AGAIN, THIS IS A DANGEROUS STORM PRODUCING A TORNADO. THIS IS THE SAME CELL WHICH PRODUCED THE DAMAGE AND POWERFUL TORNADO THAT MOVED ACROSS OUR SOUTHERN COUNTIES, WENT THROUGH NORTHERN WALTHALL ...

The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other growing ...