Exploding manholes are one of those weird and interesting side effects of living in a large city. Imagine walking down the street when all of a sudden a manhole covers flies 50 feet in the air!
On February 17, NASA launched a rocket with a record-setting five satellites onboard. The $200 million mission is to discover the source of an atmospheric phenomenon known as the geomagnetic substorm.
Our planet would be a much different place without its richly diverse ecosystems full of plants, animals and microorganisms. What poses the biggest danger to the millions of species that call Earth home?