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NASA's Bennu Sample Discovery UPSC NOTE

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  NASA's Bennu Sample Discovery NASA’s OSIRIS-REx spacecraft collected rock and dust samples from the asteroid Bennu in 2020. The samp...

 NASA's Bennu Sample Discovery

  • NASA’s OSIRIS-REx spacecraft collected rock and dust samples from the asteroid Bennu in 2020.

  • The samples were returned to Earth in 2023 and have shown signs of containing chemical building blocks necessary for life.

Key Findings in the Samples

  • The samples contained 14 of the 20 amino acids, which form proteins.

  • They also contained all five nucleobases, essential components of DNA and RNA.

  • These findings support the theory that asteroids, like Bennu, may have delivered the ingredients needed for life on Earth.

  • The discovery suggests that such compounds could form in space and are widespread across the solar system, raising possibilities for life beyond Earth.

  • Unlike meteorites that could have been contaminated by Earth’s environment, the Bennu samples were kept pristine, making the findings more reliable.

  • The samples also contained minerals formed by evaporating salty water, indicating the presence of a wet environment on Bennu’s parent body where prebiotic chemistry could have occurred.

  • Although the samples contained key organic compounds, there was no direct evidence of DNA or RNA in the samples.

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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: NASA's Bennu Sample Discovery UPSC NOTE
NASA's Bennu Sample Discovery UPSC NOTE
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