The "Blue Marble" was the first photo of the whole Earth and the only ever taken by a human. Fifty years on, new images of the planet reveal visible changes to the Earth's surface.

April 22 is traditionally known as Earth Day, the occasion where we pause as temporary travelers on our 'blue marble' to ...

NASA’s autopsy of planet swallowed by a star gives astronomers a surprise - Planets are eaten by dying stars as they turn ...

Widely acknowledged as one of the most widely distributed photographic images in existence, the "Blue Marble" was ...

Pettit posted his striking footage on social media on Tuesday. The American astronaut used a wide-angle lens to get the entirety of the seven-window Cupola module in the video, using the panels to ...

So how, over the 50 years since that iconic image was taken, has the Blue Marble changed? Nasa The crew handed the camera to each other, each taking photographs throughout the journey to the Moon ...

April 22 is traditionally known as Earth Day, the occasion where we pause as temporary travelers on our 'blue marble ... a special NASA page where participants can download this year's inspiring ...