What are those things? They were first seen in 1998; they don't look like anything we have here on Earth. To this day, no one is sure what they are, but we now know this: They come, then they go. Every Martian spring, they appear out of nowhere, showing up — 70 percent of the time — where they were the year before. They pop up suddenly, sometimes overnight. When winter comes, they vanish.
A 2006 letter in Nature described this idea of geysers near the Martian south pole. Some American scientists then proposed a"Mars Geyser Hopper," an instrument built to investigate geysers that could "hop" from site to site. (Avoiding, one presumes, sudden gushers from below). Michael Benson's new collection of prints, taken from the digital printouts transmitted by exploration space telescopes, are works of science and imagination. The images are black and white in origin; the color is added. Michael calls his technique "true" color, meaning, he's choosing a spectrum that represents what a human eye would see if a human eye (and brain) were on the scene. His newest is called "Planetfall: New Solar System Visions."