Nasa's Curiosity Lands On Mars
― Nasa's most expected curiosity has safely landed on mars.There are basically three ways to land a spacecraft on Mars, with an atmosphere one percent of the density of Earth's. Reentry shields and parachutes work to slow down the spacecraft, but not nearly as well as they do on Earth. ∙ The Viking probes used rockets to slow the spacecraft in the air and lower them gently to the Martian surface. The Mars Exploration Rovers, Spirit and Opportunity, used a similar system to suspend them 10 [...].










