NASA's Mariner 4 captured the first-ever close-up image of Mars on July 14, 1965. While waiting for the data to be processed ...

Health officials in northern Arizona confirmed Friday that a Coconino County resident died from the pneumonic plague, marking ...

There’s so much to love about our national parks! That’s why we’ve put together a national parks checklist and map you can use to keep track of the ones you’ve visited and make plans to see the ones ...