Is it possible for a baby to start learning language before it's even born? Learn why some researchers now think that our language skills can develop in the womb.

What does it mean to be alive? Scientists are now revisiting this question as they discover previously unknown microorganisms at the bottom of the ocean.

Article reports on a new study that claims that the energy released from asteroid collisions may have sparked life on Earth. Includes a list of key vocabulary.

Teens and adults have different brains. Find out what makes the teenage brain so unique.

A study provides new clues as to why some respiratory diseases are linked to air pollution.