What if all planets have volanoes like Earth Venus,and Mars? Could Jupiter have very active volcanoes that make its atmosphere so thick? We can not see its...

Hi, I am going to build a house in Vancouver WA. Since it is now winter I would like to be able to calculate where the sun will set in the summer time so...

forwarded by Terry...3 letters concerning the POSSIBLE discovery/announcement of our system's 10th planet...can't vouch for the accuracy of any of this, but it...

What is known of the ancient druids' knowledge of astronomy? And that of the peoples that preceded them in the British Isles, e.g. those responsible for...

What is the name of our Moon? I mean every single planet in our solar system with a moon has had its moons named. Why haven't we named our own moon? It's like...

Well here's SR 101: cos(sgn(d)|csc(z)|)/cos^2(sgn(v)csc(z))=1 1/sin(sgn(d)|csc(z)|)/sin^2(sgn(v)csc(z))=c Electromagnetic red and blue ****. Then...

If all the asteroids in the solor system impacted with jupiter would it be enough mass to cause jupiter to ingnite?

Will someone please, in basic English, how is space curved? I understand it may have to do with the 4th dimension.....what's that? If this is true, then pi...

Gravity Force Inside a Spherical Shell (is always zero) http://hyperphysics.phy-astr.gsu.edu/HBASE/Mechanics/sphshell2.html#wtls So, how thick is the shell...

Hi: I just don't understand why the expansion of the sun into a red giant would be classified as the sun's 'death'. As a red giant, the sun will very much be...

I saw some posts, at paranormal about.com, that say a body or comet is approaching, that this can provide a unifying account for solar warming, increased...

Hi I found a nice function for PHP: http://nl.php.net/manual/en/function.date-sunrise.php It can calculate the sunrise if you provide the Long, Lat and the...

http://sohowww.nascom.nasa.gov/hotshots/ not bad at all.

Sunspot 652 is simply amazing, with stunning structure. I won't be able to image it tomorrow, but the past 2 days images are here on my own website. Both LPI...

http://www.surfingtheapocalypse.net/cgi-bin/forum.cgi?read=3685 are we near to the end?

Hi all If you are interested by constructing your own sundial, you may be interested by the web site www.shadowspro.com It provides a freeware program to...

Hi Group Doen anyone know a good source of "not so expensive" diffration gradings (600 to 1200 g/mm)? I would like to experiment with spectroscopy and...

Greetings. According to Wikipedia, the star Altair "is most notable for its extremely rapid rotation; by measuring the width of its spectral lines, it...

The theory about a Big bang implosion at the end of the expansion of the universe .... Is that still a considered possibility? On my personal observance of an...

Aditya Naredi wrote: Hi everyone, A few days back I heard from my hometown in India that people observed a 'northern shift' of Sun during sunrise....