The "pale blue dot" of Earth viewed from the deep solar system. Credit: NASA / JPL-Caltech. Perhaps the most poignant picture of Earth is also the smallest view of Earth.

LETTER | We need to take a moment to contemplate a role that we all share, that is, as inhabitants of Earth. On a planet where "life" is defined and serves as a reference point for seeking signs ...

It wasn't until 1946 that humans first saw what the Earth looked like from space. These iconic images of our planet now include "Blue Marble," "Pale Blue Dot," and "Earthrise." The farthest is ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale Blue Dot" image is just as awe-inspiring today.

The Pale Blue Dot is a photograph of Earth taken Feb. 14, 1990, by NASA’s Voyager 1 at a distance of 3.7 billion miles (6 billion kilometers) from the Sun. NASA/JPL-CALTECH.

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale Blue Dot" image is just as awe-inspiring today.

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale Blue Dot" image is just as awe-inspiring today.

An image captured by the Mars Express orbiter shows a view of our planet and its moon from orbit around the Red Planet, more than 180 million miles away. The image was released to commemorate the 20th ...

"On the Dot" web extra: Environmental justice 03:51. Businesses and governments use Aclima's data to identify and reduce sources of pollution. "To deal with climate change, to deal with air ...

When searching for Earth-like worlds around other stars, instead of looking for the "pale blue dot" described by Carl Sagan, new research suggests that a hunt for dry, cold "pale yellow dots ...