Star light is forever
The light that stars have emitted is still around in the universe. This forms a cosmic 'fog' that can be utilized by astronomers to determine the space between stars. These types of things make me wonder if we could make use of this light to do the extraordinary think powering time-travel machines.
Jupiter's significance and the importance of an asteroid belt
The asteroid belt was key in the formation of life on the early Earth. Asteroids are often thought of as harbingers of danger and this is rightly so. On the other hand, they bring with them the building blocks of life when they impact a planet like ours.
I know that we have only identified a few alien solar systems in what seems to be a sea of them, but in this small number of alien systems there is only a small minority that have an asteroid belt.
Layman's views on space exploration: A sky diver's ironic views
Talking about extraterrestrial life and space colonization, here was a rather paradoxical view by Felix Baumgartner. He basically wants us to spend our tax dollars on Earth rather than wasted trips to the Red Planet. But the whole point of a space colony is to safeguard the human race from any trouble that may occur here on Earth and the problem that we face with the depletion of resources.
It is the time to be ambitious rather than pessimistic. If Columbus was a pessimist, then he would have had the attitude of why try to go across a big ocean to get to Asia?