Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising temperatures are once again causing the world’s oceans to turn green.

In that moment, all of humanity was captured in a ghostly fragment of a pixel swimming through an unrelenting sea of darkness — a "Pale Blue Dot" lost in a void. Carl Sagan — the astronomer ...

With the occasional nod to his greatest achievements, his exploration of the cosmos is at times a challenging, daunting ...

The multi-faceted band's new tune " Try Not to Die " played a few songs into the set, poetically employing Carl Sagan's ...

The image of our planet was dubbed the "Pale Blue Dot", and this photograph and the book by Carl Sagan that it inspired became an iconic image of the fragility and uniqueness of our place in the ...

On February 14, 1990, Voyager 1 took the iconic 'Pale Blue Dot' photo of Earth from 3.7 billion miles away. An updated version of the iconic “Pale Blue Dot” image. (photo credit: NASA/JPL ...

NASA's Voyager 1 spacecraft nearly 12 billion miles from Earth is still phoning home from interstellar space, and a new NASA photo captures that radio signal as pale blue speck in a cosmic ocean.

The proposed space-themed educational center, Space Base California, is progressing through its initial development stages in ...