Sizing Up the Sargassum Belt Seaweed composing the Great Atlantic Sargassum Belt hit near-record levels in June 2026, with the Caribbean Sea and Gulf of America both reaching all-time highs. ASA Science.
Commander Jessica Meir and Crew Check Spacesuits, Prep for Spacewalks The seven-member Expedition 75 crew worked throughout Tuesday on spacesuit checks, eye exams, and exercise research aboard the International Space Station. Earth imagery and lab inventory duties rounded out the day for the orbital residents.
ASA Science.
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