kosmički zraci

kosmički zraci

Extremely high-energy subatomic particles that continuously bombard Earth from all directions. Most cosmic rays hit and break up atomic nuclei in Earth's upper atmosphere. Airless bodies are not protected and their surfaces (asteroids, for example) are exposed.

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Ordklass: noun
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Bransch/domän: Astronomy
Category: Planetary science
Company: PSRD
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Bransch/domän: Aerospace Category: Space flight

svemirski šatl

A reusable spacecraft with wings developed by the U.S. National Aeronautics and Space Administration (NASA) for human spaceflight missions. The first ...