C/2007 W1 (Boattini):  

Keep an eye on this comet - it may reach 6th magnitude or better during early evening hours in late May before it gets too close to the Sun. See: http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2007W1.html 

Looks like it'll actually get quite close to Earth but unfortuantely will be in the daytime sky at that point and so not viewable. :-(

John Wheeler, the great physicist who coined the term "black hole", passed away yesterday: http://cosmicvariance.com/2008/04/13/goodbye/

http://www.sciam.com/article.cfm?id=pioneering-physicist-john-wheeler-dies

Good pass of the space station tonight (Thu Apr. 10) at 9:11pm in the west northweest.

Now is a good time to observe Saturn - next year the planet is headed for a ring-plane crossing so we won't get as good of a view of the rings as we do now. Here's a nifty online doo-dad that can help you observe the brighter satellites of Saturn:http://www.skyandtelescope.com/observing/objects/planets/3308506.html?page=1&c=y

Note a group of small sunspots have just come onto the disk. They're not visible to the naked eye but might be nice with a white light or H-alpha filter.

Note there will be a nice pass of the ISS and the Jules Verne spacecraft tomorrow (Wednesday night).See:http://tinyurl.com/3akj65The AT (aka Jules Verne) will precede the station by a couple minutes.

I was busy in Michigan this week...didn't notice the big glow in the sky LOL...

But here's a several billion year old gamma burst that occured well before the Earth existed!

http://science.nasa.gov/headlines/y2008/21mar_nakedeye.htm?list880574

Rolling Rock is running ads telling people to go outside on March 21 to watch their logo projected on the Moon with lasers. See: www.moonvertising.com
 
Note this is a hoax. The lasers needed to bounce off the bare surface of the Moon would need to be too powerful for safe use. (The Moon's albedo is only 12%).

Does anyone have a sure fire way of collimating a 5" Celestron Schmitt Cassegrain without spending a fortune?

Test blog, blah blah blah!