The true identity of centaurs, the small celestial bodies orbiting the Sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of ...
10:30 pm ET Update: Several hours after this article was published, Ars obtained a still image of the Centaur V anomaly that occurred on March 29 during testing of the Vulcan rocket’s upper stage. The ...
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