Artist's concept of the smallest star known to host a planet.

Artist's concept of the star Fomalhaut and a Jupiter-type planet.

A Jupiter-like planet soaking up the scorching rays of its nearby sun.

A massive asteroid belt in orbit around a star the same age and size as our Sun.

The hottest known planet in the Milky Way, called WASP-12b, is so close to its sunlike star that it is superheated to nearly 2, 800 degrees Fahrenheit.

Artist's concept of Kepler 22b, an extrasolar planet found to orbit the habitable zone.

An artist's impression of a unique type of exoplanet.

Artist's concept of the Kepler-16 system.

Kepler-16b orbits a pair of stars in this retro space poster.

The Earth shown at the outer edges of the known solar system.

Solar System

Artist's concept of a distant hypothetical solar system.

A moon rises above a stormy gas giant planet.

Artist's concept of a red giant over a hypothetical planet.

A rugged planet landscape dimly lit by a distant red star.

The extrasolar planet HD 209458 b passing in front of its star.

Artist's concept of a Hot Jupiter orbiting a star named 51 Pegasi.

A globular star cluster with a red giant star and its planetary system.

Zeta Piscium is a binary star system consisting of a red giant and a white dwarf.

Vertical rings surround the planet of Uranus.

The planets and larger moons to scale with the Sun.

A spacecraft nears a planet to steal resources.

Cassini spacecraft orbiting Saturn and and its moon Titan.

A starship visits an asteroid near the planet Mercury.

A giant planet orbiting the sun-like star 79 Ceti.