Science wallpaper on Desktop in the section Seasons / page 50

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A mansion in the woods at night among cobwebs

A mansion in the woods at night among cobwebs

A mansion in the woods at night among cobwebs

Illustration of a couple in love in space

Illustration of a couple in love in space

Illustration of a couple in love in space

Jellyfish on a bright blue background

Jellyfish on a bright blue background

Jellyfish on a bright blue background

Lilac-red jellyfish on a dark background

Lilac-red jellyfish on a dark background

Lilac-red jellyfish on a dark background

Viruses toys bouncing balls

Viruses toys bouncing balls

Viruses toys bouncing balls

Abstract picture about healthcare

Abstract picture about healthcare

Abstract picture about healthcare

A red robot with a golden head is flying in space

A red robot with a golden head is flying in space

A red robot with a golden head is flying in space

A solar column in the night sky

A solar column in the night sky

A solar column in the night sky

A man in a suit next to a motorcycle

A man in a suit next to a motorcycle

A man in a suit next to a motorcycle

The man in the movie shoots a gun

The man in the movie shoots a gun

The man in the movie shoots a gun

A space object on exploration in space

A space object on exploration in space

A space object on exploration in space

A man running away from the epicenter of the explosion

A man running away from the epicenter of the explosion

A man running away from the epicenter of the explosion

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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. ).