A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to less than a year.
NASA is working on a lithium-plasma electric thruster that uses roughly 90% less fuel than chemical rockets. Can this new technology help us colonize Mars?
Add Yahoo as a preferred source to see more of our stories on Google. Under the best circumstances, a trip from Earth to Mars and back would take a spacecraft three years to complete. And that's ...
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