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Lower-cost space missions like NASA's ESCAPADE are starting to deliver exciting science – but at a price in risk and trade‑offs

This low-cost mission is still only getting started, and it's taking bigger risks than typical big-ticket NASA missions.

How animals have been used for espionage from Hvaldimir the roving Russian whale to American 'bat bombs' and a 'spy squirrel' unit caught behind enemy lines

The first time animals are believed to have been used was after German pharmacist Julius Neubronner developed the pigeon ...