There are countless space activities that would be no less exciting than the moon missions were, I have no doubt. The search for life on Mars, for example.

Some air you inhale was exhaled by Cleopatra.

Claiming there is no other life in the universe is like scooping up some water, looking at the cup and claiming there are no whales in the ocean.

The limits on your enlightenment come not from the age you stopped going to school but from the age you stopped being curious.

If God to you is where science has yet to tread, then God is an ever-receding pocket.

The value of the space program is beyond science, it's beyond military; it's a cultural shift in how we think of our place in the universe.

Photons are accurately and legitimately described as waves and particles at the same time. They are genuine wavicles.