What looks like a flying egg, was never designed to land, and was so light it could be thrown off course by its own guns?

Which exercise machine burns the most calories? The one you enjoy and will use the most. Here are our all-time favorite cardio machines we have tested at Live Science. When you purchase through links ...

From budget-friendly and foldable options to premium smart running machines, these are the best treadmills to help you hit your fitness goals this January. When you purchase through links on our site, ...