Explore Swim Fit and Stroke Improvement. Prerequisite (must have both): 17 years old+; able to swim two lengths of the pool (50 metres) continuously; The Adult Swim Fit program promotes and encourages ...

Why we explore Mars—and what decades of missions have revealed In the 1960s, humans set out to discover what the red planet has to teach us. Now, NASA is hoping to land the first humans on Mars ...