Video Podcasts: The Incredible Two-Inch Universe
You can use this 4-STEP SCALE MODEL to
imagine some of the distances involved
in NASA's explorations of the universe.
How likely do you think it is that there is life
elsewhere in our galaxy? Intelligent life?
What challenges are there in trying to communicate
with any potential life around other stars?
In other galaxies?
Some people say they feel insignificant after
understanding the scale of the universe; others say
it makes them feel that life on Earth is special; still
others feel amazement at the power of the human
mind. What's your view?