Salt Water on Enceladus
Researchers have confirmed that the Cassini probe has collected salt water from icy geysers on Enceladus, a small moon in Saturn's E-Ring. From Time:In 2005, Cassini . . . endeavored to determine the composition of the exhaust in the most straightforward way possible: by flying through it and registering the thousands of high-speed pellets that collided with its skin. The speed and density of the pellets confirmed that they were ice. Analyzing the precise composition of that ice has taken years, but the results, published this week in the journal Nature, were worth the wait.
Not only is the ice made of ordinary water, but it's salt water, with sodium turning up in the samples no matter how many times the ring material was retested. "Our measurements imply that besides table salt, the grains also contain carbonates like soda," says Frank Postberg, a Cassini scientist working at the Max Planck Institute in Heidelberg, Germany.
Apparently, the chemistry of the ice points to a "large quantity of standing water" on Enceladus, water that "might be unusually hospitable to the emergence of life." (The article explains how liquid water can exist so far from the sun.)
While humanity has given up on the possibility of one day establishing diplomatic relations with little green men on Mars, we still can hope to one day encounter plankton-like organisms on the moons of Saturn.










I confess that I felt a sense of relief when I learned yesterday that Michael Jackson died. For anyone who was alive and listening to pop music during the 1970s and 1980s, watching Jackson self-destruct—and allegedly hurt several children and their families along the way—has been painful. I can only imagine how painful the past 15-or-so years have been for Jackson, his close friends and family, and the aforementioned children and their families. It's as though Michael Jackson had been terminally ill. While his suffering and death were tragic, now that the illness has passed, we are free to remember and celebrate Jackson as he was before he got sick. So do yourself a favor today and listen to "I Want You Back," "Blame It on the Boogie," "Say, Say, Say," "Billie Jean," "Human Nature," and/or Rockwell's "Somebody's Watching Me." (Stay away from the Bad album; I listened to "Bad" and "Smooth Criminal" this morning, and they don't really hold up.) Embrace this opportunity to enjoy the contributions of one of the great performers in pop music history.




