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A beautiful galaxy with planets

3d illustration. green spiral

3D illustration. Green Spiral

Cosmic landscape, moons and planets on the background of the starry sky

Planet earth. view from the moon

Planet Earth. View from the moon

Fantastic sunset in the vastness of the galaxy

View of the earth and the moon from space

Abstract dynamic color lines

A beautiful witch in blue clothes is flying

Three planets in a row

Planet moon on exploration in space

Smoky dark call of duty

Rescuer spider shnyuk i will save

Rescuer spider shnyuk I will save

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Система знаний о закономерностях в развитии природы, общества и мышления, а также отдельная отрасль таких знаний. То, что поучает, даёт опыт, урок (в 4 знач.; разг. ).