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The planets are visible throughout February, "but they’ll be lined up best toward the end of the month,” NASA says.

An artist’s impression of the two new planets discovered. An inner super-Earth, here seen transiting in front of the orange host-star and an icy giant planet on the periphery of the system. The ...

Illustration of a Mars transit habitat and nuclear propulsion system that could one day take astronauts to Mars. Credit: NASA For NASA, sending a crewed mission to Mars has been the long-term goal for ...