I've often wished we could all have a brief moment of hurtling around the Earth, not to posture or preen, but to show the opposite — we are small, we are humble, and we need to fiercely care for the ...

Earth Day is held on April 22 with this year’s being the 55th anniversary of the first in 1970. It began during a time of great public protest in this country due to the Vietnam War, the Nixon ...

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 ...