Without new landers or rovers, it's helicopters or bust for NASA's Mars program
NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.
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NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.
$100 million deal gives 50,000 Ukrainian drones US-developed AI capabilities.
Testing shows rotor blades won't disintegrate when they spin at supersonic speed.