http://www.bbc.com/news/science-environment-37729033 The last time CO2 was regularly above 400ppm was three to five million years ago, say experts. Prior to...

Fellow netizens: After many years, I have finally decided to take on Richard Hoagland's nonsense about Mars. He has been relentless with his rubbish on...

Preface from James Hansen's "Storms of My Grandchildren" http://www.stormsofmygrandchildren.com/Preface.pdf The book ...

??? -- caz

Hmmm, Arnold did Total Recall, And AlGORE invented Mars.. Sounds like a match! Orion --- Outgoing mail is certified Virus Free.

This was really prompted by the recent digital camera vs. film discussions. It seems to me that amateur astronomy (and other hobbies as well) have been seized...

Back of the envelope cutting TREES and CO2 === http://www.globalchange.umich.edu/globalchange2/current/lectures/deforest/deforest.html 40 million acres per...

Rudolph_X wrote in news:asqbb.10537$Uv2.2394 @nwrdny02.gnilink.net: Hi there! The late night radio talk show king, Art Bell, is...

I have owned a Discovery Dob for 3 years. I love the scope! I have been borrowing a Celstron Cass (~10 years old) from my club for a few weeks to use at 2...

*all* of the "classical" experimental evidence reveals teh properties of light to be wavelike, including the photoelectrical effect, if the detector is...

....everyone. Apple will officially support booting Windows XP on Mactel hardware. That's not emulation; it's native on Intel hardware. Please see...

I mean, really? Although their plossl line is superb, the rest of 'em are just overpriced luxury items that serve no real purpose when it comes to actual...

I just received my issue and was disheartened with the Editorial, as well as the advertisement next to it. Comments are solicited. ;-) jon

On Jul 16, 8:49 am, V wrote: On Thu, 15 Jul 2010 23:57:09 -0700 wrote: On Jul 15, 10:56 am, V...

Which of you would be happy with a 6" apo as your only telescope? Bill G.

With or without any future service the Hubble will some day go offline. There have been a lot of ideas floating around as to what to do then. I was wondering...

In the beginning, there was Ephemeris Time. Then, it got replaced by TAI. Both were made up of seconds the length of which was based on the length of the...

Just saw this news article: http://arstechnica.com/tech-policy/2015/04/anti-municipal-broadband-group-tries-to-silence-a-critic/ This sort of thing should...

Our scientists are so succesful in telling us that perpetual motion generators cannot be build, that we are scared to even try to build one. So it took a...

Just curious, Leupold or Swarovski or Nikon. etc, etc, we are all on the same threshold of fine optics for rilfle scopes. Same goes for AP, TV, SV, Tak,...