Marc:
But space has been expanding that entire time, and the distance from here to there is now 46 billion light years, even though the light we see only traveled 13.7 billion light years.
I love it! I looked for the Bamiyan Buddha, for the knock the tall buildings down phallic obsessives (joke, I hope, but I can see it might not be funny for some, to whom I apologize in advance) …
Sheril Kirshenbaum is a research associate at Duke University and co-author of Unscientific America. Sometimes she's a classicist, radio jock, or congressional staffer. For more information, visit her website.
August 21st, 2009 at 3:51 am
Fantastic cartoon – love it.
August 21st, 2009 at 5:26 am
Are there really only 5 star candidates that humans might eventually travel too?
August 21st, 2009 at 9:20 am
Pedant point: the age of the Universe from WMAP is 13.7 +/- 0.2 Gyr, not 46 Gyr. Cute otherwise.
August 21st, 2009 at 11:17 am
Marc:
But space has been expanding that entire time, and the distance from here to there is now 46 billion light years, even though the light we see only traveled 13.7 billion light years.
August 22nd, 2009 at 5:06 am
You wonder what that cartoon would look like if it was drawn fifty years from now, in time, not light. If anyone is still around to draw it.
August 22nd, 2009 at 8:20 pm
Brilliant, wonderful depiction of our Universe.
August 23rd, 2009 at 8:52 am
[...] So here’s another vital infographic (from here). [...]
August 23rd, 2009 at 10:22 pm
Is there anywhere I can purchase this as a chart ?
August 24th, 2009 at 9:45 am
I love it! I looked for the Bamiyan Buddha, for the knock the tall buildings down phallic obsessives (joke, I hope, but I can see it might not be funny for some, to whom I apologize in advance) …
August 24th, 2009 at 10:50 am
@8 Allen Hook,
Go to http://store.xkcd.com/