By Prof. Raphael Nyarkotey Obu, PhD  Introduction Geothermal energy is an abundant yet underutilized resource in Africa, ...

If you're heading to Tuscany, you're in for not just scenic views and delicious food, but also a spa-like getaway if you add ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.