All posts by Carl Sagan

Carl Sagan was an American astronomer, astrophysicist, author, science popularizer in astronomy and other natural sciences.

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A guide to photographing the stars

Astrophotography is a specialized type of photography for recording images of astronomical objects and large areas of the night sky. The first photograph of an astronomical object (the Moon) was taken in 1840.

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A closer look at distant nebula

The Helix Nebula is a large planetary nebula located in the constellation Aquarius. This object is one of the closest to the Earth of all the bright planetary nebulae. The Helix Nebula is an example of a planetary nebula.

The Great Discontent Review

An artist is a person engaged in one or more of any of a broad spectrum of activities related to creating art, practicing the arts, and/or demonstrating an artform of any kind.An artist is a