Step aside Roanoke, Jamestown and Plymouth — St. Augustine was here first, and it's survived more than 450 years. Here's the history of this place. ...read more
There have been five mass extinctions in our planet's history. The sixth will be more of a slow burn, and unlike the ones before it, humanity is to blame. ...read more
The discovery of two ghostly galaxies created a hullabaloo in the astronomical community. But the jury’s still out on what’s really going on. ...read more
Air pollution kills hundreds of thousands of people every year in Pakistan, yet no one was monitoring air quality. Now a group of citizen scientists is prompting change. ...read more