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NASA's DART Mission Unveils New Insights on Asteroid System

Researchers find Dimorphos is significantly younger and less cohesive than Didymos, revealing new details about asteroid formation and evolution.

  • Dimorphos' surface is estimated to be only 300,000 years old, compared to Didymos' 12.5 million years.
  • Both asteroids are rubble piles, with Dimorphos likely formed from material shed by Didymos.
  • The DART impact significantly altered Dimorphos' orbit due to its loose, boulder-filled composition.
  • Thermal fatigue rapidly affects the boulders on Dimorphos, altering its surface faster than expected.
  • The findings aid planetary defense strategies and offer a deeper understanding of near-Earth objects.
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