Russian citizen mauled to death by tiger shark off Egypt's Red Sea coast in rare attack

Coral reefs are seen in the Red Sea at Ras Katy Beach in Sharm el-Sheikh, South Sinai, Egypt on Sept. 8, 2022. As this year's United Nations climate summit approaches, Egypt's government is touting its efforts to make Sharm el-Sheikh a more eco-friendly tourist destination. (AP Photo/Thomas Hartwell) Coral reefs are seen in the Red Sea at Ras Katy Beach in Sharm el-Sheikh, South Sinai, Egypt on Sept. 8, 2022. As this year's United Nations climate summit approaches, Egypt's government is touting its efforts to make Sharm el-Sheikh a more eco-friendly tourist destination. (AP Photo/Thomas Hartwell)

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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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