"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

A pair of small satellites launched aboard a Blue Origin New Glenn rocket last week, bound for Mars. The first dual-satellite mission to another planet, NASA’s ESCAPADE (Escape and Plasma Acceleration ...

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.

“The closer it is to the sun, the more a planet becomes dominated by the sun’s gravity,” Kane said. “Because Mars is farther ...