In 1962, when environmentalist and author Rachel Carson penned 'Silent Spring,' alerting the world to the dangers of the pesticide DDT, it was the reproductive threat to birds -- the bald eagle in ...

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University of Virginia. He has written four books on astronomy and consulted on space ...

Four planets in the solar system are about to appear in alignment in the night sky. Here's how stargazers will be able to see ...

"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

Spring’s cosmic rewind is over! Mercury, the planet of communication, was retrograde between March 15 and April 7.