Before we explore space, it's important to realize that there are still mysterious places here on Earth that remain to be discovered and explored. One of these places is the...

Despite pressure from big business and power companies, a federal appeals court upheld first regulations that will reduce the gases blamed for global warming. This may be the most significant decision on climate change since a 2007 Supreme Court ruling that greenhouse gases could be controlled as air pollutants.

The rules will reduce...