SAN FRANCISCO -- Scientists are celebrating what they consider to be a major breakthrough in learning more about Mars.
A rumbling on the Red Planet, or what researchers are calling a Marsquake, was captured by a NASA probe.
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NASA's InSight Lander delivered a seismic monitor several months ago.
Scientists believe the Marsquake was about as strong as about a magnitude two quake here on earth.
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Check out more stories on Mars.