A chunk of Mars dropped off and plunged 250 million miles to Earth, crashing down as a meteorite in the North African desert, ...

Read More: Elon Musk just unveiled SpaceX's audacious new plan to build cities on Mars But for us Earthlings, surviving on a planet with a ... we know it cannot exist without beneficial ...

Mars, for example ... has proposed how to convert the rusty-colored planet into a place where humans can walk without spacesuits. To achieve this, the researcher suggests bombarding it with ...