Tiny satellites named Wall-E and Eva are about to take a trip to Mars. Will they survive?

Two tiny NASA satellites nicknamed Wall-E and Eva are about to hitch a ride to Mars.

The twin, suitcase-sized spacecraft, called cubesats, will launch to space Saturday aboard the same rocket carrying NASA's InSight lander to Mars, but they'll have very different missions once they reach the red planet in November.

SEE ALSO: NASA's next Mars mission launches Saturday: Everything you need to know

While InSight is expected to unlock the secrets of the planet's interior from the ground, the cubesats — collectively named MarCO, short for Mars Cube One — will stay in orbit around Mars to test out if these little spacecraft can relay information from the lander back to Earth. Read more...

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