Dean W. Armstrong

The eclipse season continues, as the Moon's nodes--the intersection line of the Moon's orbital plane and the Earth's orbital pla...

The bright "star" next to the nearly Full Moon tonight was Jupiter, in case you were wondering.

Phil Plait points out pits on the Moon ! Click to enlarge. Images via NASA/GSFC/Arizona State University/LROC

The bright orange "star" next to the Full Moon tonight and Friday is the planet Mars, which happens to be closest to Earth tonight...

The LRO imaged most of the Apollo landing site on the Moon. Things will get better as the orbital parameters are modified. There appears t...

The first test images are back from the LRO . I've annotated a previous image of the moon with the location of the image: The orange ma...

The Japanese Space Agency JAXA just deorbited their lunar orbiting spacecraft Kayuga. Watch this , this , this (embedded below) , or this , ...

This was taken on Thursday. Click to enlarge. 2427x2599. A composite of 6 sets of images. Each set is approximately 30 subexposures of 1...

A moon mosaic from last night. I didn't take the images or process them; Will did all that. The only thing I've done is run it thr...

Click to enlarge

I was perusing (as best as possible without reading Japanese) the currently released images of the Moon from the Japanese spacecraft Kaguya...

There is no doubt that the northern winter continues on at full strength, ignoring the cold and wind chill. The full moon rose last night w...

http://www.space.com/scienceastronomy/071220-asteroid-mars.html Speaking of 2007 WD5, the orbit is weakly constrained because the observatio...

Kaguya is a Japanese moon orbiter that is sending back HD video. And awesome images.

Phil Plait looks at the low southern moon here that I mentioned last month

It's the autumnal equinox today , the day when the Sun appears to cross over into the southern sky. The stirrings of winter are beginni...

The last good pass of the International Space Station for Chicago in the near future will be tomorrow, June 22nd. You may be asking, why i...

A fine night in Chicago, the Moon near Regulus, with Saturn halfway between the Moon and Venus. Space Shuttle Atlantis and the Internationa...

For the current Mercury and Venus evening apparitions, here are two useful graphics from Curt Renz, plus the lunar phases for June: June moo...