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Full Version: Milky Way not our home galaxy
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i'm proud to be sagittarian, and not a native of the galaxy with that silly name that happens to eat ours. a shame though we did not live a billion or two years ago. might have enjoyed a perfect top view of the whole milky way covering the sky. never again, sagittarius is finished.

http://ohlundonline.blogspot.com/2010/01...-here.html
Interesting. I'll read more.
"Scientists" in this instance use this to prove Global Warming?
WmLambert Wrote:"Scientists" in this instance use this to prove Global Warming?

Bill, I know absolutely nothing about the 'so called' Sagittarius Dwarf Elliptical Galaxy. But I fully intend to read up about it. Galaxies are running into each other all the time. And we are scheduled to run into the Andromeda Galaxy in about two billion more years.

I'm certain that there is a lot of conjecture about things, based upon a little science. Of course Pepe will tend to say the same thing about me and my thinking about the Jovian planets influencing ours. S2
What we have here is one website quoting a second website, quoting a 7 year-old press release from the two micron all sky survey. Here's the problem. Nowhere does the original source of the material come anywhere close to saying that our solar system started out in the Sagittarius dwarf galaxy. In fact they say...

Quote:On the other hand, Majewski and his colleagues have been surprised by the Earth’s proximity to a portion of the Sagittarius debris.

“For only a few percent of its 240 million-year orbit around the Milky Way galaxy does our Solar System pass through the path of Sagittarius debris,” Majewski said. “Remarkably, stars from Sagittarius are now raining down onto our present position in the Milky Way. Stars from an alien galaxy are relatively near us.

So what you have is someone finding an old press release, adding his own material to it to make it more fantastic (and to make it support his theory.) Of course he doesn't make it clear that the original scientific source is not the author of the theory. Then a third website picks up the second story without, apparently, checking out the background material.


Original Press Release


2MASS website
Yeah, the assertion fails to explain why our planet is located within the galactic plane of the Milky Way, unlike those of the dwarf galaxy, which is rotating around the MY,

Interestingly enough, the Sagittarius Dwarf Elliptical Galaxy, is not the only one acting as a satellite around ours. There is also The Canis Major Dwarf Galaxy, discovered in 2003. It too is being slowly swallowed up by the MY.

AND, there is another, Globular Cluster "NGC 1261", which is also outside the MY, and being incorporated within it, over time.

I wonder if we will also discover others orbiting around our galaxy? There is still a lot out there to learn. Hell, we still think that our solar system could really be a duality system, since the overwhelming majority of star systems have two, or more stars within each, and singletaries are the minority. It could well explain why the inner system is bombarded with comets ever 26-30 million years, leading to mass extinctions.
Asteroid to pass near Earth on Thursday

Maybe one of those galaxies will perturb the orbit of this baby and send it to its natural home, planet earth on Thursday.

It is a shame that this would have to happen before the new health care plan takes full effect.

Gravitational attraction: F = G*m*M/r^2.
jt Wrote:Asteroid to pass near Earth on Thursday

Maybe one of those galaxies will perturb the orbit of this baby and send it to its natural home, planet earth on Thursday.

It is a shame that this would have to happen before the new health care plan takes full effect.

Gravitational attraction: F = G*m*M/r^2.

If you go to SpaceWeather. com,, and travel to the bottom of the page, you can find "Near-Earth Asteroids", which will show you everything that has come close enough to us, on a monthly basis, to be of some concern. There are some pretty large ones, whizzing by all the time.
Looks interesting. I'll check it out.
jt Wrote:Looks interesting. I'll check it out.

SpaceWeather.com is a great place to visit on a regular basis. It should be bookmarked, because it also keeps up with sunspot activity. And note that while the sunspot activity is increasing, it is nowhere like what it would normally be doing. Still further evidence we are in a major period of solar inactivity. Once all this El Nino activity ends, start looking for some REAL Cooling.