Dean W. Armstrong

http://antwrp.gsfc.nasa.gov/apod/ap070628.html Wow. Last week Joe Cottral and I videotaped a pass of the ISS and the Shuttle from Ryerson O...

An older image, but cool nonetheless . Earth and Jupiter visible from Mars, taken by the now-deceased Mars Global Surveyor. Make sure you ...

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...

Last night was a fantastic pass--photos will be up in the next post. Tonight, see them again, this time starting at 9:52:07PM in the NW, r...

See the two race across the sky, TONIGHT, Tuesday night, starting at 9:31:27 at 10 degrees above the NW horizon, reaching 54 degrees above t...

via MAKE , Pharyngula , etc. Originally at Memepunks .

The online Geiger counter is temporarily off while I deal with power issues in my office. I've also been thinking of taking it and a ...

image from Solargenix A large solar thermal energy plant is now online in the Eldorado Valley , just south of Las Vegas, creating up to 64M...

In about a year and a half, analog broadcast TV will be ending and the transition to digital broadcast in the US will be complete. The New ...

The upcoming Shuttle mission starting on Friday evening is a big construction project on the ISS, to move and add a large solar array to the...

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

There are Martian Caves--large skylights into a world we nothing of. The Planetary Society's Blog has the article. The Mars Reconaissan...

A large fire in south suburban Harvey (Chicago) is producing enough particulates to produce a visible return on the clear-air NEXRAD radar ...

Today marks the 300th anniversary of Carl Linnaeus aka Linné's birth. These two images are identical--open them up in two browser wind...