I think you guys might be off on this one. I've seen these green lasers being used by kids and rather irresponsibly... shooting it at movie screens in the...

I'm sure I'm not the only one who has noticed the substantial reduction in number of pages per issue of Sky & Telescope; 102 vs 150 a year ago. Anyone heard...

I found this article he http://news.cnet.com/8301-17852_3-10191181-71.html March 6, 2009 10:37 PM PST Pluto is a planet again! (in Illinois) by Chris...

I looked up some sunset and sunrise times today comparing Cambridge MA to Boca Raton FL. I understand why the sunset is later in Boca (it's further West, sees...

I fully understand this is, um 'bird-bait' shall we say but notwithstanding my curiosity has me pondering why we don't just slice one full rotation of the...

When did the giant impact that formed the Moon take place? ...

It is a basic human right that children be taught that the Earth turns once in a day and 1461 times in 1461 days/4 years. I do not complain that in an era...

On Tuesday, January 2, 2001 1:07:51 PM UTC-5, Allan Schaffer wrote: In your subject line you called it a "shadow" but perhaps you meant "silhouette?" Was...

Earth-like? I'd believe it when they get there. Here's the travel time: -Current rocket technology (if a large enough one could be built):...

steve wrote: It seems that the rules for being a planet have been chosen very similar to those proposed in our thread. Pluto's moon Charon and 2003 UB313...

Aug. 14, 2006 Erica Hupp/Dwayne Brown Headquarters, Washington 202-358-1237/1726 Megan Watzke Chandra X-ray Center, Cambridge, Mass. 617-496-7998

Dear List, Last night we had some incredibly high winds - luxury yachts and boats of all sizes overturned at various marinas (just to give you an idea) - and...

There has been debate here for a long time over what kind of telescope is the best overall. Optical design, portability, suitability for photography, ease of...

What's more likely. A Big Bang where everything starts from a singularity or M-theory Big Splat (ekpyrotic scenerio) where two higher dimensional colliding...

http://www.msnbc.msn.com/id/9063708/ It was God that made this thing and it is God that knows that nothing can be done. It always amazes me when people look...

So, we are now told that Mars is having a bit of global warming. This at the time when the Sun seems to be behaving in an uncharacteristic way and providing a...

http://tinyurl.com/9zpp4

In a few weeks, I will have another birthday past my fiftieth. The effects of aging are beginning to affect my habits and choices in this hobby. And with the...

http://www.cutepiggy.com/full_disclosure_project.html What is the world coming to?

What would happen if the Earth's tilt would shift to 45 deg suddenly or in a short period of time? Would we survive?