The New Frontiers program of NASA has held a lottery that would determine how the agency would focus on future exploration missions. Drones have been sent out to an asteroid that has already been fully uncovered.
These missions fall under three groups: inexpensive missions, such as the Discovery endeavors worth $600- to $700-million; the Flagship missions that cost $2 billion and are launched every decade; and the New Frontiers that work as the middle ground.
NASA then accepts mission proposals made up of five themes: sample return of comet surface, lunar pole sample return, ocean worlds such as …

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