Dean W. Armstrong

You can see the International Space Station in Chicago in the evening for the rest of the month. If schedules hold, you will also be able t...

One of the things I've always been interested in was radio; and part of that was scanning as much of the radio spectrum as possible to h...

The International Space Station on September 11th, 2009, as viewed from Chicago. Click to enlarge.

Click to enlarge. Image taken on April 22th, 2007 with Canon S300. Hue/Autolevels modified.

This image of Mercury was taken yesterday, September 29th, 2009. credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie ...

This circuit connected to my geiger counter uses on average 80uA-- that's 0.08mA. On a click, it will bump up to 0.1mA. On startup ju...

I've been having serial port problems with my geiger counter that has been running since December 1st, 2005, and so at the moment there...

See the International Space Shuttle and the Shuttle together in orbit here in Chicago: http://www.heavens-above.com/PassSummary.aspx?satid=2...

The Kepler mission is looking at this field of stars in Cygnus and Lyra . One of these stars will have an Earth-sized planet orbiting a sta...

If you are searching for ISS and Shuttle passes over Chicago, tonight's was the last one for a while. If you are an early morning perso...

Enceladus' north pole. Click to enlarge to awesome. via Planetary Society Blog .

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...

I just watched an awesome pass of the International Space Station over Chicago. I was able to catch it and follow* the ISS through a telesc...

There are a number of nice passes of the International Space Station visible in Chicago for the next two weeks. Take a look at Heavens-Abov...