Halloween's origins trace back to the ancient Celtic festival of Samhain, which marked the end of summer for the Celts. The Celts believed the boundary between the living and the dead blurred on the ...
"The reason for 3I’s rapid brightening, which far exceeds the brightening rate of most Oort cloud comets at similar distances, remains unclear." The interstellar invader Comet 3I/ATLAS is continuing ...
An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, ...
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