Turns out, it's as tough to drop inward into the inner solar system, as it is to head outward. The problem stems from losing momentum from a launch starting point on Earth. It can take missions ...

The Sweden Solar System is the largest scale model of the Solar System in existence, and it spans the entire Swedish ...

TIM:When I was up on the ISS, that different perspective really brought home the sheer scale of the universe. The vastness of our Solar System and the distances involved is something that's hard ...