If someone asks for your home address, what will you say?

Probably you will answer in this format:

And you stop there. 

But actually you can still extend that with adding:


and still further with...



then...



and...


up until....


and this can still expand on and on and on... inifintely? I guess this question is still unanswered, because we still don't know how big this universe expands to. So if some alien (if they exist) from another world far far away asks for your galactical address, you can answer back with "I live at #5 Red St. Square City, Philippines, Asia, Earth, Solar System, Milky Way, Local Group, ... , Universe. "


Scientific research up to this day has not yet determined what to fill up on that ellipsis.  The boundaries of this universe are still unknown to humanity.



This question and more are interestingly discussed in National Geographic Channel's latest documentary series, Cosmos: A Spacetime Odyssey.



This documentary illustrates how the universe began, how our solar system came to be and how life began on earth as we know it. It also tales how our knowledge about the skies evolved throughout history - how religion and ancient traditions of the earlier times clashed with the revolutionary ideas declared by astronomers that learned and observed the skies. Their discoveries hugely helped on the development of the knowledge that we have about the universe today.

Cosmos is actually a follow-up of the 1980 phenomenal series Cosmos: A Personal Voyage by Carl Sagan. 

Catch the 13-episode documentary on National Geographic Channel (this also airs on FOX Channel) every Wednesday starting March 12, at 10PM.

This "dome" is a commemorative left inside the Mind Museum to celebrate the launch of Cosmos.

[Stay tuned for more photos on the media launch held at Mind Museum. Invites courtesy of NuffnangPH.]


~o~

reference: wikipedia.org