My personal opinions on matters that I consider important to me and to those people and things I care about. Specifically, I am concerned about the future my descendants will face. I may occasionally comment on my views on religion. To me, Religion is: Belief in and reverence for a "super natural" power or powers regarded as creator and governor of the universe.
Tuesday, August 27, 2013
A Flight through the Hubble Ultra Deep Field
Video Credit: NASA>, ESA, F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer and the HUDF Team (STScI)
Explanation: What would it look like to fly through the distant universe? To find out, a team of astronomers estimated the relative distances to over 5,000 galaxies in one of the most distant fields of galaxies ever imaged: the Hubble Ultra Deep Field (HUDF). Because it takes light a long time to cross the universe, most galaxies visible in the above video are seen when the universe was only a fraction of its current age, were still forming, and have unusual shapes when compared to modern galaxies. No mature looking spiral galaxies such as our Milky Way or the Andromeda galaxy yet exist. Toward the end of the video the virtual observer flies past the furthest galaxies in the HUDF field, recorded to have a redshift past 8. This early class of low luminosity galaxies likely contained energetic stars emitting light that transformed much of the remaining normal matter in the universe from a cold gas to a hot ionized plasma.
NOTE: All those little dots are entire galaxies in just a very small part of our universe. This is the Super Natural that I believe in as opposed to supernatural (as in fantasy and superstition). Whether or not mankind ever gets to contact other people on other worlds, I firmly believe there are hundreds of billions of worlds out there that are filled with intelligent life. We are not so special as to be the only world with intelligent life. And we are a very long way away from being intelligent enough to do any significant space travel and we may never be. I think we'll destroy ourselves before we can even get close to discovering other more intelligent life.
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