On its way to a 2014 rendezvous with comet 67P/Churyumov-Gerasimenko, the European Space Agency’s Rosetta spacecraft, with JPL instruments on board, flew past Earth today to pick up energy.

Like the Saturnshine image posted earlier, this is only an estimation of a true color image. Five sources were used to compile this image; clear 1, clear 2, red, blue and another clear filtered image was used to replace the missing green to round it out (this work by S_Walker from unmannedspaceflight.com). We then additionally cleaned out artifacts from the original images and blurred the surrounding geyser haze largely to eliminate posterization noise.

This is the first time anyone has been able to attempt a true color view of the geysers with the availability of the red and blue images. Also a bonus is the considerable amount of Saturnshine seen on the dark side of the moon.

More coming. Looks like a nice encounter.

Gordan U compiled this image of Enceladus lit both by Sun and Saturnshine. The side lit by reflected light from Saturn is in infrared and in the original appeared in a green hue. I took some liberties and imaged it as I would imagine it really would appear to the eye in Saturn’s more orange/yellow hues.

Worth noting tomorrow the images are due in from Cassini’s closest approach yet through its plumes. Hoping for some amazing material.

A view of Umbriel from Voyager 2 in 1986. Thanks to Ted Stryk who specializes in re-imaging images from old missions with today’s advanced computing. There are few images of this place and no missions planned any time soon… so these may be all we ever see of it in our lifetime.

The most interesting detail revealed in these images is the bright white disk that appears at the top of this image which is actually at the equator. Since the Uranian system is turned on its side almost 90 degrees to the rest of the solar system, Voyager passed all of its moons at nearly the same time. The orientation means we are actually seeing the southern pole nearly straight on in both these images. Such an unusually high-contrast feature reminds one of Saturn’s strange moon Iapetus. It could be the same phenomenon that made Iapetus look the way it does may have also been at work on Umbriel.

Not at all meant as a “gotcha” at all… but I just love when I take the time to clean these up and people start using these my clean-ups over the ones officially released. Daily Galaxy posted my Comet Halley clean up and I knew I recognized it as my handy work. They most likely got it off Google image search.

Seen in this image are Enceladian surface features and it’s geysers in action. This is normally not possible as the geysers are not normally visible unless they are back-lit… which they are in this image. The difference is that the surface details of Enceladus are being lit by an additional light source: Saturnshine. This makes for a fairly rare view where both details can be seen in one view.

This is so nice, but I am furious that I didn’t get to design this. This is Information design at it’s best naturally by National Geographic. You can see 50 years of robotic planetary exploration at a glance. It even includes failed missions represented by darker desaturated lines. As far as I can tell the cream colored lines are US and the red ones are Soviet. Interesting to see how many of those lines go dark around Mars.

Now where does one purchase such a thing? Perhaps this month’s issue of NG? Here is the link to it on their site complete with zoom viewer and them some kind samaritan posted a hires version to flickr.

Astro0 (a contributor to unmannedspaceflight.com) had been looking through a 159 frame set of images that showed a tiny portion of Saturn’s sunlit limb. He animated it just to see the effect and happened upon a pretty nice animation of a Saturnian aurora (click here for the animation). Which is likely the first time we are seeing an aurora on another world so clearly animated.

To be clear… the spots that stand still in the animation are artifacts of the images. The streaks are stars seemingly flying by due to Cassini’s cameras being trained on one spot as it and Saturn itself are moving through space. Astro0’s blog can be found here and I suspect will soon feature a post with more details on the animation in the very near future.

Messenger passed by Mercury for a third and final time before it’s orbit insertion in 2011. It entered safe mode during this swing and lost a bunch of science, but the loss is merely one of time as Messenger’s long-term mission will surely cover anything missed this time around.

Image by Gordan Ugarkovic.

I usually do not go for montages of planets for a variety of reasons, but this family portrait of the 4 Galilean moons of Jupiter is quite gorgeous. They are easily the most fascinating and beautiful bodies of our system of worlds, save for perhaps Saturn and its rings.

Another work of art by Ted Stryk whose old blog Planetary Images from Then and Now has come back from the dead with vigor!

I was away in California for a wedding and my fellow designerds at The Chopping Block made this funny little site (seen above) so people can make the announcement to their friends… or if anyone forgets and needs to be reminded. If you want to be more scholarly about this, the official NASA announcement is here.

What makes the discovery more exciting is that the process by which the water exists on our moon means that it likely also exists on other similarly dry bodies like Mercury and the countless asteroids in the Asteroid Belt between Mars and Jupiter.

Nice example of science meets Hollywood.