At first glance, an outdoor watch might feel like a luxury. After all, your phone can tell the time and show a map, right? But in the hills, that’s rarely enough. Phones run out of battery, break ...

A well-chosen triathlon watch can revolutionise your performance, making you stronger, smarter and faster. But which ...

Satellites beaming sunlight down to Earth sound like science fiction – and they have astronomers very worried.

Total solar eclipses only happen in the same spot once every 300 or 400 years, so it's no surprise that a team of researchers ...

The stand-alone room, which Texas-based Thermasol says is the first off-grid solar-powered sauna available in the U.S., ...