oil on canvas, 1973 impression of the frigid landscape of a hypothetical planet beyond Pluto. Lakes of liquid nitrogen cover the surface.
Pluto at Perihelion - Pluto's thin atmosphere thaws when it is near the sun, perhaps causing parhelia and other optical effects
Portrait of Clyde Tombaugh, discoverer of Pluto, 50th anniversary commemorative poster
a comet nucleus, whose exotic ices are stained brown by cosmic radiation, basks in the light of an ancient supernova
fragments of a comet nucleus drift in the icy reaches of the Oort Cloud, far from the sun. - painting by Don Dixon
Kuiper Belt
Diagram showing the inclined orbit of minor planet Pluto with respect to the Kuiper Belt surrounding the solar system. Digital 1999 © Don Dixon / cosmographica.com
Reddish organic compounds may blanket the icy surface of Pluto. Pluto's moon, Charon, Pluto's largest moon,looms in the sky. - painting by Don Dixon for Scientific American
Pluto and Charon
Pluto and Charon- Pluto and its moon Charon form a double planet at the frontier of the solar system, cover for Out of the Darkness, by Clyde Tombaugh,…
500-hypothetical-planet-nine
A hypothetical planet in the outer reaches of the solar system orbits more than 700 times farther from the sun than earth does. A super-Earth, with an estimated…
503-pluto-glacier
503-Pluto-Glacier A glacier of frozen nitrogen flows through a valley on frigid Pluto, with its large moon Charon on the horizon. Oil on masonite panel, 2015,…