The concept of the ‘Big rip’ was proposed recently by
Caldwell et al. Now S. Nesseris and L. Perivolaropoulos
re-estimate some timescales in this approach.
The authors find that the ‘Big Rip’ will come a little bit erlier, for example the rip of the Milky way will start 60 million years earlier than it was estimated by Caldwell et al.
Of course on the astronomical timescale 60 million years is like a tiny moment, however …..
You can read more news in physics and astrophysics in Russian at my page:
http://xray.sai.msu.ru/~polar/sci_rev/current.html