ALS is more common in some parts of the U.S. than others and it has a very strong geographic association with MS, a new study ...

Imagine you're walking along a beach, talking to your friend, enjoying the sunshine. Time goes by and it's time to head back.

It sounds like sci-fi until you read the footnotes. “Dimming the sun” – the blunt nickname for solar geoengineering – has ...

Few countries have the political stability and geography necessary for a good spaceport. Oman is often called the ...

With more than 300 islands to explore here, we’ve got your guide to the best times to visit, where to stay—from resorts to ...

Lions, white rhinos, elephants, and giraffes have been reintroduced to a park that was once nearly devastated by civil war.