“NASA scientists have planned a spectacular celestial show for July 4th. That’s the date on which a probe from the Deep Impact spacecraft is scheduled to slam into the comet Tempel 1 in an attempt to learn more about the comet’s billion-year-old interior. New images snapped by the Hubble Space Telescope are giving researchers a sneak peak at what type of conditions they might find. The pictures show a new jet of dust streaming out of the icy comet.”
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