Ottawa eyeing U.S.-made surveillance planes for Canadian Armed Forces

The U.S. Navy P-8 Poseidon aircraft takes off at Ngurah Rai Military Air Base in Bali, Indonesia on Saturday, April 24, 2021. (AP Photo/Firdia Lisnawati) The U.S. Navy P-8 Poseidon aircraft takes off at Ngurah Rai Military Air Base in Bali, Indonesia on Saturday, April 24, 2021. (AP Photo/Firdia Lisnawati)

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How the lack of gravity in space impacts astronauts’ brain

What happens to the brain when you take gravity away? According to a new study looking at astronauts both before and after space travel, that experience causes physical changes that researchers believe requires at least three years between longer missions to recover from.

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