Thank you all intellectuals who posted here..great replies...i like it....since we have many stars, we might have planets similar to our earth with sea...perhaps there are beaches as well, if there are beaches, there might be sand, if they are similar to the one we have here, then possibility that we have more grain of sand than star does exist.

But then again, I would like to thank LP , topnotch(specially for the telegraph link), nomad08 and Britexpat for your useful comments.

To the rest I say thank you for your 'Intellectual' input. I guess these scientists who did the research published in the daily telegraph have put their intelligence to shame. At least according to your views above. Man, I envy you for your Intelligence. Where did you get it? From breastfeeding I am sure cause I survived on LongLife milk.