ESA Grabs Glimpses of Mars’ Groovy Moon

This animation is comprised of three images acquired by ESA’s Mars Express spacecraft on Sept. 12, 2017 with its High Resolution Stereo Camera (HRSC). It shows parts of the grooved and pitted surface of Phobos, the larger of Mars’ two natural satellites. The original images were captured in greyscale; I added color based on other…

A Red Cent on a Red Planet: Curiosity’s 1909 Lincoln Penny

On March 9, 2017, NASA’s Curiosity rover took this picture with its turret-mounted MAHLI camera of the calibration target installed near the “shoulder” of its robotic arm. In addition to color chips and a metric line graph, the target also includes a U.S. coin: a 1909 Lincoln penny, adhered heads-up. Curiosity’s coin isn’t just for good luck…

The “Front” Side of Tethys

This is a color image of Saturn’s moon Tethys I made from raw images acquired by Cassini on Feb. 1, 2017 in visible-light color channels. It shows the moon’s sunlit leading side—the face that aims in the direction that it moves in its orbit around Saturn. (Click image for a larger version.) While this icy moon is…

Behold the Hidden Colors of Pluto

This newly-released picture of Pluto isn’t quite what our eyes would perceive… but then our eyes aren’t high-tech scientific imaging sensors like the ones aboard New Horizons! An enhanced-color image made from data acquired by the spacecraft’s LORRI and Ralph cameras on July 13, 2015, this view of Pluto shows the many variations in surface compositions…

Share the Pluto Love!

It’s happened! At 7:49 a.m. EDT (11:49 UTC) this morning, July 14 2015, NASA’s New Horizons spacecraft performed its close pass of Pluto and, fourteen minutes later, its moon Charon. While we won’t receive a signal from New Horizons until about 9 p.m. tonight (and image data from the flyby won’t arrive until July 15th)…

This Is the First Color Image from the Surface of Venus

The surface of Venus is definitely no easy place to which to send a spacecraft. Crushing atmospheric pressures, powerful high-altitude winds amid caustic clouds of sulfuric acid, and temperatures that can soar above 880ºF (475ºC) make the next planet in a no-man’s-land for robotic spacecraft. But those challenges didn’t stop the Soviet space program from successfully putting several…

New OSIRIS Image of 67P Shows a Color Picture of a Black and White World

Many of the images we’ve been seeing of the craggy surface of comet 67P/Churyumov-Gerasimenko, as incredible as they are, are still monochrome. Now Rosetta’s OSIRIS team has released a true-color image of the comet taken with it high-res science imaging instrument… but even then it’s still pretty much grey.

The Frightful Fallacy of “False Color”

I rarely ever reblog posts, but this is an excellent criticism on the term “false color” and its oft-maligned perception by the modern public, and also a support of coloration techniques used in astronomy to produce the beautiful — and scientifically valuable — space images we have all come to enjoy (and expect!) By Dr….

The Color of Rhea

If someone were to ask you today what the most heavily-cratered world in the Solar System is, you can’t go wrong with saying “why, Rhea of course!” (I don’t know why someone would ask you that, but if anyone does you can now consider yourself well-prepared.) 🙂

Rugged Rhea

Here’s a color-composite image of Rhea, made from raw images acquired by Cassini during a flyby on March 10, 2012. The color is derived from images taken in infrared, green and ultraviolet light.