Latest NASA's Stardust mission Stories
The discovery of minerals requiring liquid water for their formation challenges the paradigm of comets as â€œdirty snowballsâ€ frozen in time.
NASA's Stardust mission is nearing Earth after a 4.63 billion kilometer (2.88 billion mile) round-trip journey to return cometary and interstellar dust particles back to Earth. Scientists believe the cargo will help provide answers to fundamental questions about comets and the origins of the solar system.
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