Fan shaped deposits at the south pole have been attributed to CO2 gas
geysers:
Gas jets spawn dark 'spiders' and spots on Mars icecap.
http://themis.asu.edu/news-polarjets [http://themis.asu.e...
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I am not an astronomer or astrophysicist but lately, I have been reading a lot of books to upgrade my knowledge in cosmology.
I have encountered two issues that I am baffled about and wonder if any...
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Our perception of what a galaxy looks like is inherently skewed given that the immense size of the galaxy itself provides a lopsided picture. If viewed from any angle other than directly head on, the...
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Hello there,
I was searching the net to find some empirical formulas on how to estimate the loss in temperature (and increase in luminosity of a star as it ends the main sequence. I've found that som...
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I know that astronomers have found things like this before, but to find an empty part of space this big really makes you wonder.... My question to you all is, what are your theories on why there is em...
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A little plug for my supervisor and former group.
After a couple of years work with a very clever (zero read noise) CCD and a bit of clever DSP programming they now have a system which takes a sequen...
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Hello all:
My name is Miguel, from Buenos Aires.
I have a question... is it right in formal optics to name "magnification" the below formula or "focal distance equivalent" of...
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There's some buzz that this one may storm briefly for about 1 hour centered on about 4:30am Pacific Daylight Time (11:30 UT). That's just about 1 hour from now. So anyone whose still awake might wan...
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The only way the human race can really have a good chance of surviving in the long run is if we habit other planets then the earth. I figure that some planets may be habitable but without water, heat...
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I might already know the answer to this but i just need to make sure. Does a suns mass reflect its volume? I ask because...
The formation of a star simply put is: a planet gathers mass there-by g...
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Anyone know what the typical temperature or temperature range (rough order of magnitude estimate) in the ion tail of a comet is as it nears the Sun? Thanks...
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Last nights total Lunar eclipse was probably the first time a great many people even paid any attention to our natural satellite for quite a while. It's kind of taken for granted. After all, except ...
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I had no idea it took a month for the moon to orbit the earth. I thought it happened daily, and thats what gave us night. How do we get night?...
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I am a high school physics teacher, and this year I am incorporating more history into the course, from the first class onwards. Among the topics I wish to cover are the various models of the solar s...
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http://www.reuters.com/article/newsO...29057520070823 [http://www.reuters.com/article/newsOne/idUSN2329057520070823]>
Anyone have any thoughts on this? Is this the only place found to have a notice...
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what mechanism make them to re-explode? what are symbiotic novae ?...
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http://www.gearthblog.com/blog/archi...h_42_rele.html [http://www.gearthblog.com/blog/archives/2007/08/google_earth_42_rele.html]>
http://www.ogleearth.com/2007/08/google_earth_42.html [http://www....
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Step 1:take telescope out of box and assemble according to instructions.
2. Install Crayford focuser.
3. Collimate to the best of my ability/knowledge
4. Take scope outside and point at Jupit...
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Burned-out star harbors signs of Earthlike planets [http://news.yahoo.com/s/nm/20070816/sc_nm/space_dwarf_dc;_ylt=AlGS1eXRs8GTnZf2V8LFS04hANEA]>
Quote:...
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hey,
can somebody plz help me examine the truth of the statement
"the moon moves in a near-circular orbit around earth. because the earth is so much more massive, it own motion is not apprec...
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Quote:...
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I've read in different books the Sun is an "ordinary" star, and an "atypical" star.
Anyone know which description is the correct one?...
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hi there,
i plan on becoming an astrophysicist/astronomer/cosmologist and recentley started looking for basic information into astronomy which i should know.
i was wlndering if i am right about how ...
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Why is there such a focus on water (H2O) being the substance needed to sustain life. The only example of life we have is our own, but water is the most abundant resource on our planet. Why don't they ...
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I have been talking on this forum with some folks about telescopes and it seems that this is where I have been getting the best info. I have been looking to purchase a new scope for a couple of mont...
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