Being afraid of bugs isn't irrational. But learning about their importance to our ecosystem could help you see them in a new light, and even reduce your fears. ...read more
Before there was oxygen on Earth, there was cyanide. Here’s a look at how a poisonous gas may have been a key ingredient to the birth of life on our planet. ...read more
Chlorofluorocarbons are a potential signature of technological civilizations, say astronomers. And the next generation of observatories could spot them. ...read more