High power green laser pointer is simply awesome. Green beam is visible for over 2 miles. www.greenlaserbeam.com

Hi folks, I just wanted to thank everyone who responded to my swiss cheese post. Some of you had fun with your answers, which was to be expected and is ok,...

Question on which laser to buy. I've seen red lasers used to check on the surface of a mirror that was being ground. If I'm correct it was to see if the beam...

http://story.news.yahoo.com/news?tmpl=story&u=/nm/20041021/sc_nm/space_impact_dc Wouldn't this possibly change the orbit of the comet, which can then either...

According to the instructions, it's supposed to be possible to obtain extra celestial objects plotted on the screen by simply adding a text file filled with...

Just received a phone call from a former neighbor in East Mesa, AZ asking about a strange object they had just been observing 'below Orion' between 7:30-8:00...

A large solar event occurred on the 20th at 7 gmt. The effects of this event should reach Earth by 5 am on the 21st gmt. This means that there could...

Hi all, For some reason, Astromart changed my status to "Dealer". I'm not a dealer and have never been a dealer. Now I can't post an ad without paying $40...

On Fri, 21 Jan 2005 22:41:37 GMT, SCT Buyer wrote: I'm going to buy an 8" SCT in the next month or so, but am undecided if I should...

Hello everyone, I am planning to buy myself binoculars set, would be using it for nature/landscape watching as also for astronomy (astrophotography). I am in...

I am after suggestions for worthwhile photometry projects with high northern declination (60degreesN) and relatively bright (brighter than 6.0mag). I suffer...

Is there an on-line website that computes limb features exposed by favourable libration? My lunar snap of Jan 18 shows western limb nr Mare Crisium well...

OK...not to rain on anybody's parade and trying not to be to cynical....but is that all they got was three pictures and a sound bite? I mean I think it is an...

Point a green laser at an aircraft you could get 25 years and a $500,000 fine. http://apnews.myway.com/article/20050105/D87DMD880.html

I recently did a little telescope shopping. I looked at Ebay, Astromart, the local adds, on line stores, etc. As one would expect, the variety, quality and...

Generally speaking, which of the two tends to be better optically and mechanically? I can't afford to buy a new scope very often, so I want my decision to...

I recently picked up a GM8 with the Gemini goto. To say that the operation of this system is non-intuitive might be the understatement of the year! Who...

This evening we have had a rather strong display of Aurora Borealis over southern Norway. I shot some images from my back garden with a Coolpix 995 (mostly...

suppose there is a lifeless planet with conditions like earth before life formed. suppose one of our spaceships fly over this planet and drop an astronaut...

On the longest day of the year, is the displacement of the sun in degrees from the zenith equal to its same displacement in degrees above the southern horizon...