A Haunting

Tucson — Informed by my education and reading, I have abandoned the fallacy of the so-called “Great Chain of Being.” Humans, for all our uniqueness and impact, do not command over all the other lifeforms on th...

The Ocean, san diego, Travel

Why We Go to the Ocean

San diego — Why We Go to the Ocean We don’t go to the ocean because there is salt water in our blood. The pH and salt content of our blood might reflect our evolutionary path from the ocean to land, but the phys...

Location: Endeavour Crater in Meridiani Planum on Mars. Subject: Mars Exploration Rover Opportunity. Eyes in the Sky: HiRISE Camera

Tucson — The strange speck outlined above sits on the surface of Mars in this false color image acquired on July 8th, 2013. It is the Mars Exploration Rover Opportunity, launched ten years ago, landing over ni...