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1 min read
These giant comets could be on a collision course with Earth
Astronomers have some new insight into the activity of centaurs, giant comets that could have a dev…
Justin Gmoser,Jessica Orwig
2 mins read
Mystery solved: NASA confirmed the space object that just zipped past Earth is a 1960s rocket booster
Earth's gravity briefly captured the old Centaur booster, leftover from a failed moon mission. It's…