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Creative astronomy, star art image

Curved glowing colored lines on a black background

Transparent balls on a purple background

The secret of the deadly battle portal combat

A black hole is a region of space-time

Two planets on the background of the milky way

TWO PLANETS ON THE BACKGROUND OF THE MILKY WAY

The big planet at sunset

View of the planet. space objects and bodies

View of the planet. Space objects and bodies

Windows operating system logo

Windows Operating System logo

There are many stairs inside the space box

Explosion of a supernova star in the andromeda galaxy

Explosion of a supernova star in the Andromeda galaxy

Earth's amazing space astronomy

Earth's Amazing Space Astronomy

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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. ).