The hottest deep-space destination of the moment is undoubtedly Mars. We're counting down the days until humans set foot on the Red Planet, but that date may not exactly be right around the corner. Fear not, Mars lovers; NASA has another option for getting people to Martian soil much quicker. But we're not talking about astronauts — we're lookin' at you.
3, 2, 1, BLAST-OFF
What's Inside Mars? NASA's InSight Mission Will Probe Deep
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