The first footfalls on Mars will mark a historic milestone, an enterprise that requires human tenacity matched with technology to anchor ourselves on another world.

Mars has a bit of air pressure; maybe we can build up that atmosphere to be a bit more accommodating to humans.

I am excited to think that the development of commercial capabilities to send humans into low Earth orbit will likely result in so many more Earthlings being able to experience the transformative power of space flight.

Ray Bradbury is one who is contributing to the understanding of the imagination and the curiosity of the human race.

'Anthony and the Magic Picture Frame' tells it like it really was in America's early space program - the adventure, the risks, and the rewards.

I know: If you're looking down at Earth, you're looking through an atmosphere that has a bit of haze in many places and not just occasional clouds.

Computers allow us to squeeze the most out of everything, whether it's Google looking up things, so I guess that tends to make us a little lazy about reading books and doing things the hard way to understand how those things work.