One of the challenges of landing on Mars is getting a lander onto the surface safely: The heavier the craft, the more difficult a safe landing is to achieve. Scientists propose using retropropulsion engines and angling the craft to create a pressure differential to land heavier crafts in the future.
Does science fiction suffer from animal animosity? Where are all the outer-spacey pets? Who banned fish tanks from the Enterprise? C.E. Martin wants to know.
