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NASA is preparing to launch an infrared telescope named WISE that could indeed live up to its name. Among its targets: dark asteroids that have slipped beneath the radar of an ongoing project to map objects larger than 1 kilometer that orbit near Earth.
Hunting asteroids wasn't in the original plan for the Wide-field Infrared Survey Explorer, known by the acronym WISE, which arrived at Vandenberg Air Force Base in California this month for launch preparations.
The mission will uncover the coldest stars, called brown dwarfs, perhaps even one closer to us than our closest known neighbor, Proxima Centauri, which is 4 light-years away.
Originally posted by Iamonlyhuman
reply to post by Ophiuchus 13
Your picture's not showing up.
Originally posted by Soylent Green Is People
reply to post by Ophiuchus 13
Your images are small, but most of the SOHO pictures that show white dots with a short horizontal line running through the dot is simply a planet. The horizontal line is caused by a light overload in the camera sensor (i.e., the planets ore too bright). Comets are also visible,in some SOHO images. Sometimes a "flash" of light is seen in a spot in one image, but is not there in a subsequent image; these are cosmic rays.
Here's an image from SOHO in which you can see Mercury, Venus, Jupiter, and Saturn:
sohowww.nascom.nasa.gov...
And here is a picture of two comets:
sohowww.nascom.nasa.gov...
[edit on 9/1/2009 by Soylent Green Is People]
Originally posted by Aggie Man
Hey Iamonlyhuman, I'm glad you started this thread. I meant to u2u you yesterday and tell you to go ahead with it, as if nothing else, NASA is virtually admitting that there is a possibility of a brown dwarf being nearer to us than our currently known closest brown dwarf. Which DOES give at least some credence to the....oh gawd, I'm gonna say it...Nibiru/2012 theory.
I hope that this thread stays constructive.
Originally posted by Soylent Green Is People
I think all NASA has has "admitted" is that there are asteroids that do not reflect a lot of light, and are therefore difficult to see using traditional asteroid-hunting methods. I don't see any this as any evidence that NASA is aware of a brown dwarf in the solar system....
...and "admit" is not the right word to use. "Dark" asteroids have been known to exist for decades -- there was nothing for NASA to "admit". Dark (or more accurately, "C-type") asteroids includes more than 75% of known asteroids and are extremely dark; they have and albedo of 0.03.
C-type asteroids are hard to be seen and make up most of the asteroids that exist -- including potential planet killers. I don't see how NASA's use of the WISE spacecraft to look for C-type asteroids is any evidence whatsoever that NASA knows a brown dwarf is approaching the Earth.
[edit on 9/1/2009 by Soylent Green Is People]
The mission will uncover the coldest stars, called brown dwarfs, perhaps even one closer to us than our closest known neighbor, Proxima Centauri, which is 4 light-years away.
.
Originally posted by Phage
reply to post by Aggie Man
Proxima Centauri is not a brown dwarf, it is a red dwarf.
"Admits the possibility"? I guess you could put it that way but you could also just say that there is a possibility. A sphere of diameter 8.4 light years is a large sphere indeed.
There is no possibility that any object fitting the description of the mythical planet Nibiru exists.
[edit on 9/1/2009 by Phage]
Originally posted by Soylent Green Is People
...all I'm saying is that NASA isn't admitting that a brown dwarf star exists within the confines of our solar system and they certainly are not admitting that one is on an orbital approach to Earth (such as the Nibiru story goes).