Expanding Beyond All Understanding
If the universe does in fact become dominated by Λ - dark energy drive acceleration, then in a surprisingly short time the Milky Way will be rather lonely, as all unbound nearby galaxies will have receded beyond our event horizon.
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Check it out over at Unbounded Medicine.
Grand Rounds 3.3 are up on Unbounded Medicine.
Penguins Unbound (the web site for the Monthly Meeting of Linux Enthusiasts) announces the Ubuntu 10.10 Release Party and Install Fest for October 30th, 2010 at 10:00am to 4:00pm at TIES on Snelling Avenue in Falcon Heights (which you may know of as Saint Paul), Minnesota.
"We detect motion along this axis, but right now our data cannot state as strongly as we'd like whether the clusters are coming or going." -Alexander Kashlinsky
Nothing we can currently see can become completely invisible, since our past light now is completely contained within our past light cone at some future date. But the galaxies that don't form a bound complex with us will get exponentially large redshifts and be extremely faint. If you plug z = -0.998 into my cosmolgy calculator you get a light travel time of -100 Gyr. Thus in 100 Gyr the Universe will be 500 times bigger, the CMB temperature is 5.5 mK and much fainter than the galactic foreground, and all the easily visible galaxies will be in a bound system. So Lawrence Krauss predicts the death of cosmology.
"Surprisingly short" in a relative way.
If you follow the link and read a little, be prepared for some weird visual aftereffects when you come back to this site.
"what did you say professor?!!!"
"I said, in about 4 billion years the Sun will become a red giant and incinerate the Earth"
"oh, I thought you said 4 MILLION. Phew!"
What are the visuals? Just did the flick on safari and didn't see anything...