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TRAPPIST-1's solar flares could reshape the search for habitable planets

TRAPPIST-1 looks small and calm from Earth. Up close, it is anything but. The cool red star about 40 light-years away erupts ...
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It Seems Absurd, But You Could Line Up Every Planet In The Solar System Between Earth And The Moon

Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with nothing but our eyes. Yet, that 238,855-mile gap between Earth and its lunar ...