South America, night-day satellite image

South America at night, satellite image

North America at night, satellite image

North America, night-day satellite image

Africa, night-day satellite image

Asia, night-day satellite image

Radio telescope and star trails, artwork

Distant lightning hitting water over the Atlantic Ocean, at night, near Satellite Beach, Florida, USA

Earth from space

Satellite orbiting planet, illustration.

Moonrise over trees

Blue Marble image of Earth (2005)

Aurora borealis over snow covered hills at night, Finnmark, Norway

"Hurricane Sandy, October 30 2012. NASA Earth Observatory image by Jesse Allen, using VIIRS Day-Night Band data from the Suomi National Polar-orbiting Partnership (Suomi NPP)"

A crescent moon against a deep blue twilight sky

"Hurricane Sandy, October 30 2012. NASA Earth Observatory image by Jesse Allen, using VIIRS Day-Night Band data from the Suomi National Polar-orbiting Partnership (Suomi NPP)"

Photographed on the road to Dettah outside of Yellowknife, Northwest Territories; this can be considered an explosion of aurora borealis. The reddish hue is ambient light coming from the city of Yellowknife.

The final day of the year; celebrations on Frame Lake in the heart of Yellowknife, the capital city of the Northwest Territories, Canada.

Flora & Fauna - line art - a 19th century engraving Animal - mammal - the class Aves Bird Snowy Owl A nocturnal bird of prey inhabiting the Arctic Tundra and regions immediately to the south in Asia, North America and Europe. It nests on the open ground

Heart shaped earth in sky

A probe investigating a heavily cratered moon in deep space.

The remnants of a long abandoned colony see signs of life again.

A probe investigating a heavily cratered moon in deep space.

An Earth-like planet with a pair of moons in orbit.

A large water covered planet with two moons alone in deep space.

Artist's depiction of an Earth-like planet with an orbiting moon.

Galileo spacecraft discovering asteroid 243 Ida and its moon, Dactyl.

A blue moon rising over a calm alien ocean with a starry sky as a backdrop.

A probe investigating a heavily cratered moon in deep space.

Voyager spacecraft near Jupiter and its unrecognized ring.

The Arctic at night, satellite image