Constellation of articles, images, diagrams, posters, videos, and more on the subject of the search for planets, particularly Earth-like planets, outside our solar system.

Empty space in outer space is not truly empty. Celestial objects fill the space not occupied by planets, stars, and such. This resource identifies these objects and further explains their existence.

This image features two views of the "bow shock" of a dying star in the Hydra Constellation. The text below the image proceeds to explain a "bow shock" in relation to the red giant star pictured.