It's not often that I browse the recent uploads on Brickshelf, and it's certainly more rare that I blog about it. Brickshelf user Riki's LEGO interpretation of the "Neuspotter" from the MaschinenKrieger universe is the kind of model I like. It is a relatively small model that makes smart use of parts.
Compare to this model. The exposed, specialized LEGO parts, e.g. the scuba gear, do well to suggest the intricate details on the model kit.

seven month itch

_tiler and fateheart

You know some space stuff for a space blog

Courtesy of Kyle's and Jerac's photostreams. Jerac does wonderful things with wedge plates, and the use of a pair of 3787 mudguards as a laserport is inspired. 

Flight of the wedges

I've always enjoyed Legodrome's creations. They're made of fairly austere geometry, but the builder uses the large surfaces of his starships and aircraft as a canvas for thoughtful detailing. I particularly like the trio of bulbs made by the cockpit and the four wedges on either side just behind it. I think it's neat that both the older 6069 and the newer 64225 are used; the combination of straight and curved slopes suggests a tear-drop shape.

Mark Stafford's space freighter is based on a Peter Elson illustration. It's actually an old creation, he originally posted in back in 2006. It's still has vivid as it was when I viewed it as a MOCpages lurker, so check it out.

We're gonna take a break from life's demands and give a well-deserved shoutout to Jeremy's tight little mecha:

Not bionicle

Some of the more creative part use action I've seen in some time comes from Jerac. There is an interesting fusion of organic shapes and mechanical details; the end result could be nightmarish but the models still retain a whimsical look. Many LEGO-brand elements, such as the parrot from the Pirate line, have an iconic look to them. But when used out of context, the familiarity is lost, and very un-LEGO-like appearences is possible. Jerac seams to have figured this out and uses familiar parts to surprise us, the minifigure arms prolifically so in this case.
 

(olive) Green machines

  There is yet only a small selection of parts available in LEGO's new olive green color. It lends itself well to military-themed creations, although anyone who follows my own creations elsewhere knows that I could care less for realistic drab color schemes. Above, Fredo does a nice quadruped. I like the cylindrical shape he has made with the 1 x 4 curved double slopes. Given the squareness characteristic of the medium, the model's curves seem surprising although it is is hardly a departure from with Fredo's previous work. Below, Carter uses the new color for a landmate. It has good feet. I can imagine the little auxiliary arms reloading the bullpup-style weapon. 
Here's another quadruped/humanoid mecha combo with a relating color scheme, via Curtis and Pate:

Blok-head

Aaron Williams is fast becoming my favorite mecha builder. His textures are superb, as are the destails. He's really found a way to make LEGO elements look functional.

Post-Bloc

Here's one of those instances where size is something to be appreciated. I normally find small weapons on large ships tacky, and I was about to overlook the Hephaestus' armaments, but their integration into the hull with 1 x 6 x 2 arches is quite a feat. The textures Nathaniel puts to uses are smart, too:

This blue guy by Danny Rice is one of the best examples of large-scale LEGO spaceship-building. See it on Brickshelf. Notice how both these ships are a color other than grey! Colors, folks!

At Young Spacers, we love racers. This space racer is another great model by Nathaniel. The bubble canopies on both of Nathaniel's works featured here are a nice nod to the PCS and Eastern Bloc .SPACE factions of yesteryear.

Where've ya been

. I recognize Brian Kescenovitz's style has being characteristically "chunky", but his latest mecha looks to have a lot of air between its panels and plates. I think it's great—thanks to the low volume-weight ratio, the model can bear an intimidating silhouette while looking nimble.