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The sun

Curiosity's rear Hazcam recorded the shadow of the rover's rear in a 12-hour continuous view from sunrise to sunset toward the Gale Basin floor
Harvard University scientists say the Sun may once have had a binary companion with a similar mass. If the theory is confirmed, the presence of an ancient companion star increases the likelihood that the Oort cloud formed as it is observed
This year the exact time of the autumnal equinox is September 22 at 14:49 GMT
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