Mars does have an atmosphere, it's just insubstantial at about 1% of our atmosphere.It's enough that we need a heatsheild to enter it and we can use it to fly a drone, but it's too thin for parachutes alone to stop a spacecraft and far too thin for liquid water to exist.Our moon likely had an atmosphere after forming too, but the gravity is much lower on the moon than on Earth or Mars and with no magnetic field it could only hold onto that atmosphere for about 100,000 years.
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Maybe they're suggesting that Bigfoot is homeless, which is no way to treat the state cryptid.