Comments on: AAS #2: Black hole doesn’t eat baby stars, and Milky Way more weighty

By: Autymn D. C.

Autymn D. C. — Fri, 12 Jun 2009 00:32:49 +0000

I see five arms in the map. Our “partial arm” looks broken by Sagittarius. Our half thus has Norma outermost, Perseus, Cygnus-Orion innermost; the other half has Sagittarius-Carina outermost, Scutum-Crux-Centaurus.

“The planets were thought to be lights in the sky, not places that one could visit.”

If they were stones they would fall back tom Earth, wriht? Which was why meteòrites in the 1800s were still denied?

“How do they know the increased Solar orbital velocity isn’t just a result of the sun being at the periglacticon of an elliptical orbit?”

They didn’t say the span was any shorter.

I proved the black hole is as fake and wrong as the unicorn:
http://google.com/groups?q=Autymn+-autumn+doubt+deathblows
http://groups.google.com/group/sci.physics/browse_frm/thread/73daba2d40dc8cfc/c44cda8b8e572d77?

By: WJM

WJM — Wed, 07 Jan 2009 17:31:43 +0000

I love how we’ve been living in this galaxy for billions of years, and yet we’re still discovering new things about it!

By: Lab Lemming

Lab Lemming — Wed, 07 Jan 2009 11:30:39 +0000

How do they know the increased Solar orbital velocity isn’t just a result of the sun being at the periglacticon of an elliptical orbit?

By: amphiox

amphiox — Tue, 06 Jan 2009 17:01:40 +0000

The solar system getting kicked out of the galaxy, or having its orbit shifted in whatever way large or small, in most likelihood wouldn’t have that big an impact on the earth itself per se, except to change the view of the night sky. (We’d of course be seeing two Milky Way-like bands in the sky in the run-up to the collision).

Of course, I think the latest consensus is that earth wouldn’t be habitable anymore by the time this happens, not to say that humans might not still be around elsewhere by then.

By: Elmar_M

Elmar_M — Tue, 06 Jan 2009 16:55:53 +0000

Brian said:
“Anything from having one or more planets kicked out of the solar system, to the solar system kicked out of the galaxy, to getting completely blasted when the two supermassive black holes merge, to not much of anything really.”

Those were pretty much my guesses as well. So I guess one can say: we do not know

By: Winter Solstice Man

Winter Solstice Man — Tue, 06 Jan 2009 15:42:16 +0000

That artwork of young stars in the galactic center was recycled from a news item a few years back about young stars in the center of the Andromeda Galaxy.

Not that it matters, probably.

By: Hugo

Hugo — Tue, 06 Jan 2009 13:30:22 +0000

How certain are we about the position of the Sun in the Milky Way? Isn’t also possible that instead of the galaxy being more massive than previously thought, we just happen to be closer to the center, closer enough to justify the extra speed?