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A hole or depression. Most are roughly circular or oval in outline. On Earth most natural craters are of volcanic origin. On the Moon most are of impact origin.

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Industri / Domain: Astronomi
Kategori: Ilmu pengetahuan tentang planet
Company: PSRD
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Astronomi; Ilmu pengetahuan tentang planet

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Astronomi; Ilmu pengetahuan tentang planet

An element with atomic number 2; symbol: He. It is the second most common element in the Sun and outer planets, but rare on the rocky planets.

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Astronomi; Ilmu pengetahuan tentang planet

Term used to describe the layer of magma, hundreds of kilometers thick; thought to have covered the Moon 4. 5 billion years ago. The timing, duration, cooling rates, convection, ...

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Astronomi; Ilmu pengetahuan tentang planet

Forces that alter the path of a comet, which are not caused by gravitational interaction with the Sun and planets. Typically this refers to uneven outgassing from vents on the ...

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Astronomi; Ilmu pengetahuan tentang planet

Person engaged in or trained for spaceflight.

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Astronomi; Ilmu pengetahuan tentang planet

An element with atomic number 7; symbol: N. It is common in Earth's atmosphere and along with hydrogen, carbon, and oxygen is essential for life.

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Hristina Acovska

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Industri / Domain: Orang Kategori: Musisi

Боб Марли

Јамајкански музичар и текстописец кој живеел од 1945 - 1981, и е несомнено најпознатиот реге музичар на сите времиња. Неговата компилација Легенда, ...