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Greta Thunberg and other climate activists block entrance to Swedish parliament

Researchers to observe how total solar eclipse affects animal behavior

Most songbird species migrate at night.giving researchers and citizen scientists opportunities to observe new habits.

a strong opponent of the regulation from the start.

long known as the birthplace of country music and the launchpad for musical legends.

the Northern Hemisphere is leaning away from the sun — leading to the shortest day and longest night of the year.