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"Hale-Bopp has been a favorite of comet studies in part because it was one of the brightest comets seen." Comets — those small, icy objects orbiting the sun — act like floating time capsules ...
A mysterious volcanic comet has just reawoken, unleashing four major eruptions in less than 48 hours and spraying out enough of its icy guts to make the city-size object appear almost 300 times ...
Meteoroid trails may reveal hazardous comets near Earth early on. Long-period comets could pose impact risks; meteoroid trails offer clues. New technique could provide years of warning for comet ...
Martin Impey is an award-winning illustrator of more than 50 books, and has twice been nominated for the prestigious Kate Greenaway Medal for children's book illustration.