![Can you solve the alien pyramid riddle? – Henri Picciotto Can you solve the alien pyramid riddle? – Henri Picciotto](https://i.ytimg.com/vi/qsc3YZ2S924/maxresdefault.jpg)
You and your team of scientists are trapped on Mars. Can you figure out how to survive on the desert planet? -- Today is the anniversary of the best-worst day of your life. The best part was discovering a subterranean city on Mars. The worst part was when you lost contact with Earth. You and ...
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