Starship Asterisk*

That "Galileo" experiment and "Michaelson" experiment results are correct. Galileo's experiment showed that mass is independent of gravitational acceleration. The Michaelson-Morley experiment showed that light does not travel relative to any fixed medium, or 'luminiferous aether...

And that's all to it, everything else is logical consequence , including "speed of gravity propagation". Now, what reasons, in the name of ***, you have to doubt it?? I just don't get it. I don't believe anybody intended to doubt GR directly; the questions asked so far seem to be along th...

The red, green, and blue dots are star images resulting from combining exposures through different color filters: http://asterisk.apod.com/vie ... php?t=1218

:lol: Guys, jakub is asking about the RGB spots in the image, not about the cometary fragments! He is right that these spots are images of stars resulting from sucessive exposures through red, green, and blue filters. Following the APOD links, you can see the same effect in images on this European S...

Of course it’s an expansion of matter and energy. When you think about the BB, think about an observable super heated bubble of matter and energy exploding and expanding outwardly. Now ask yourself what is this bubble (i.e. observable universe) contained in -it's called the TOTAL universe. The bubb...

Try a different browser, like Firefox! http://www.mozilla.com/firefox/

(didn't know you had a search engine, harry )

However, BBT being true then there was a "spot" where "bang" began. It is just highly unlikely it can be located. As ta152h0 hinted at in the post previous, the Big Bang was not supposed to have had a center; it happened in all of space. Or rather, it was an expansion of space, ...

Hi and welcome, Bill! The yellow-green part of the solar spectrum is actually the brightest; radiation intensity peaks at about 500nm ( varying between 483 and 520 nm ), a wavelength which, on its own, would appear green-yellow. Reproduced below is an image of the sun's radiation profile and its bes...

Hi Uncertain!

The ecliptic is tilted about 60° to the plane of the Milky Way: http://www.madsci.org/posts/archives/20 ... .As.r.html (last sentence)

Hi harry, the highest resolution inset in the link you provided above ( http://antwrp.gsfc.nasa.gov/apod/ap990216.html ) is 0.2 light-years, and the jet's thickness appears to be a small fraction of the inset's dimensions, so the jet is quite a bit less than 0.2 light-years in width. The jet stream ...

orin stepanek wrote:I noticed there's also a red ring.

Ugh...I should get that checked out.

The lines are places of high magnetic field, the space between the lines are regions of low field strength. If this were true, a compass needle would bounce all over the place as you traversed the globe. Field lines are NOT physically real; they're conceptual aids. A magnetic field does not consist...

The universe is endless What about Olber's Paradox (the night sky is dark), which was brought up earlier in this thread? the parts within the universe move in a random chaos motion giving the largest parts such as super clusters of clusters of cluster galaxies territorial locations. They are random...

More than any of the above considerations, I found interesting the way the writer "skirted" around the most important issue of all. He/she wrote: "The Universe is expanding gradually now. But its initial expansion was almost impossibly rapid as it likely grew from quantum scale fluct...

One Larry Spring has came up with a unique explanation for electro magnetism... which you might find entertaining? http://www.larryspring.com/electromagnetism.html Mr. Spring is 91 years old and lives on the No. Cal coast. :lol: His atomic theory is pretty entertaining too: he draws anagolies with ...

IANAA, but my explanation: coincidence. I can find even more elaborate patterns in the holes found in the ceiling material of school buildings.

Both a nova and a supernova would be observed from Earth as a large and sudden brightening of a star followed by fading back to its original luminosity. Novae are caused by the fusion of matter (namely hydrogen) that accreted onto a white dwarf from a binary companion. Some novae, appropriately call...

marges90 wrote:All science is theory until proven. To not ponder, is to not achieve.

Theories can never be proven, only disproven.

That looks like part of the Orion Nebula. Here's a wider field view: http://www.earthandskyphoto.com/images/orion_nebulae.JPG To put the region into perspective: http://www.seds.org/messier/Pics/More/obelt_kc.jpg You can just make out the Horsehead Nebula, which is tilted sideways when viewing Orion...

barakn's right - since astronomical objects are so far away, incident light rays are essentially parallel. If one part of the image is in focus, the entire image will be in focus.