" (CNN)The Ingenuity helicopter survived its first night on the freezing-cold surface of Mars, a major milestone in the rotorcraft's journey ahead of its historic first flight.
Jezero Crater, an ancient lake bed on Mars and the current site of the Perseverance rover and Ingenuity helicopter, can drop to temperatures of minus 130 degrees Fahrenheit. That's low enough to do significant damage to the helicopter's electrical and battery components.
The 4-pound helicopter finally separated on April 3 from the belly of the Perseverance rover, where it has been stashed since before the rover launched from Earth in July.
Ingenuity went through a series of movements to unfold from beneath the rover, which looked like the metamorphosis of a butterfly, before dropping the final 4 inches to the Martian surface. "
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