Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and astronauts.

The best teachers really grasp the concepts they're educating students on. There's a reason for that and you can harness the memory power of teaching, too.

A mixture of DNA and proteins—known as "chromatin"—sits inside every cell nucleus as a jumbled puddle of genetic information. As cells prepare to divide during mitosis, the chromatin is condensed into ...

Humans use lots of different types of information to make sure we don't get lost. We can look out for familiar landmarks and ...

L ocated just three miles apart from each other, the two remote islands of Big Diomede and Little Diomede are divided by two ...