This improved image of Epimetheus was released to the Cassini site yesterday and as compared to this more raw image post from December 8, it is most notably cleaner, processed in color and appears to be much sharper.

This is a view of the moon’s more southern pole and there is speculation that covering a majority of this face is actually one large impact crater which could explain it’s flattened appearance. There also seems to be what looks like a deposit or “dusting” of material all over this face which seems to blanket flat areas and begins to fill some craters and other depressed regions. The moon is only about 70 x 50 km in size, approximately the size of a city such as Los Angeles.

Nothing to show at this point (except some distant calibration images), but Messenger will arrive at Mercury on January 14th. This is the first visit to the tiniest planet since 1973. On that visit the Mariner spacecraft flew by the same region 3 different times — therefore leaving more than 50% of this planet yet unseen by human eyes. With the arrival of Messenger, most of what has not yet been imaged will be revealed in 2 more additional flybys and surely 100% will be revealed once Messenger achieves orbital insertion in 2011. With the exception of Pluto and its partner Charon, Mercury represents one of the largest pieces of real estate not yet mapped or imaged by some kind of probe in all our solar system.

Above is an aurora as seen from The International Space Station. The large white circular feature seen at the top is the Manicouagan impact crater located in northern Canada.

NOTE: Some image alteration has been applied to remove a large amount of noise and discoloring largely from the area of black space below the Earth.

The Gordan Ugarkovic fan club must be thrilled this week with all the recent Saturn images. This new one is among the best around, reminiscent of the fantastic Ian Regan composite. A gorgeous view of Saturn’s southern pole which has seen very little exposure in terms of global views (or near global) like this. The now famous “storm” dead-centered around the pole can be seen directly to the left of the image caption.

As always, the Ugarkovic flickr page for all the latest.

NOTE: An ever so slight amount of Photoshop image extension was applied to the far right side of the image only at the edge. Probably about .5% of the image.

This one was fun as it was supposed to be based upon real science, so we were able to take advantage of more reality based imagery. The idea was to get a good image of an astronaut with a suitcase and just have that with the title. A google search for astronauts turned up this excellent image of a guy looking like he is literally truckin to the launch pad. So we switched the color of his uniform, darkened the visor (one of the only things you cannot do with NASA images is show an astronaut’s likeness) and tried to make the case look a bit more like a suitcase than an oxygen unit of some kind. It really was perfect, but not high resolution enough to go large… so to fill the frame other astronaut legs were added to suggest the story is about mankind, not just the dude with the case.

Of all the Tor Books Chopping Block executed, this was always a favorite of mine.