Imagine that you're an astronaut who's been sent to establish a colony on Mars, where you spot something really incredible, and want to show it to your partners on earth.
You might be able to laboriously transmit a still photo, but forget about streaming a live video image from the Martian surface; NASA admits that isn't possible with the level of gadgetry we now have.
And even with a recent upgrade, robotic rovers on Mars have only been able to achieve a data-transmission rate of only about 256 kilobits per second.
Thus scientists have been wracking their brains for decades, trying to come up with ways for fastest interplanetary communication .Here we present ten ideas that can be considered: