Google Earth allows you to measure the distance between two points on the Earth, as well as the circumference of a circular section of the ground - or even the elevation of a mountain. 2.

According to scientists, this ambipolar electric field is thought to be just as crucial to Earth as both gravity and ...

We know more about the Moon’s surface than Earth’s ocean floor — but that’s changing fast. A NASA-supported team used a ...

It orbits Earth every 95 minutes, travelling at a speed of 17,000 mph (or just over 27,000 km/h). Universe: the universe is everything. It is everything we can touch, feel, sense, measure or detect.