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In novel twist on the Internet’s “I made this” meme, NASA’s Twitter account for the Mars Curiosity Rover just tweeted that it made a hole in Mars:
Perhaps not a very big hole, but a hole nevertheless.
Over the course of 20 minutes, Curiosity fired its million-watt laser at a tiny section of Martian soil 100 times. A million watts might sound like a lot of power, but Curiosity’s laser only operates for five one-billionths of a second. Still, that was enough to transform a small part of the Martian surface through all four states of matter almost instantaneously: from solid to liquid to gas to plasma within milliseconds.
The plasma then explodes (NASA calls it “rapid expansion”) and creates a minicrater as you can see in the animated GIF above. NASA didn’t specify but was likely checking the vaporized matter for its molecular and atomic makeup in an attempt to learn more about the present and past surface of Mars.
I refuse to believe NASA scientists were just “having fun” shooting a laser from a robot on Mars.
The crater is tiny — perhaps a millimeter in size — so there is no danger of indigenous Martians interpreting the laser blasts as a sign of incipient Earthling attack.
Image credits: NASA