(CNN) — The first experiment to produce oxygen on another planet has come to an end on Mars after exceeding NASA’s initial goals and demonstrating capabilities that could help future astronauts ...

Since starting the experiment, it has generated 122 grams of oxygen, which is the amount that a small dog breathes in 10 hours. Oxygen can be used to create breathable air and it can also be used to ...

If you've ever seen renderings of what Mars would look like if it were a lush, fertile jungle planet with vast oceans and a thick, luscious atmosphere, such a world could only exist if there was ...

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