We stand at an inflection point that is unique in human—indeed, in terrestrial—history. Humanity is on the verge of leaving the planet that has been

According to the Environmental Protection Agency, Americans spend a paltry 1.68 hours per day outdoors. That means that the average American spends ninety-three percent of

Since the beginning of human history the perception of its home planet Earth has always influenced the way humanity has formulated its beliefs and conducted

Dennis Tito’s Wild Ride There are several moments that are iconic snapshots in time of what those in the future will look back upon as

We may be small on the grand scale of the universe, but from the standpoint of significance, I think in terms of “Here’s this planet

Ever since I was a child and saw the so-called Earthrise photo for the first time I carry the overview feeling with me like a

Forty-eight years ago, two astronauts took the most expensive selfies ever shot – on the Moon. Those now-famous pictures of two Americans posing with their

When the shuttle Challenger exploded in 1986, the nation entered a period of intense soul-searching. We had become accustomed to these spacecraft routinely lifting off

This question, of all questions, is the most important of all questions ever asked. It is the most important question we ever ask, that you