Scientists are human. We have our blind spots and prejudices. Science is a mechanism designed to ferret them out. Problem is we aren't always faithful to the core values of science.

Long ago Mars was an oasis of running water.Today the Martiansurfaceis a sterile,barren desert. Here on Earth, who knows what climactic knobs we unwittingly turn,which might one day render Earth as dry and lifeless as Mars. (From the cover of Old Poison by Joan Francis)

No matter what eyewitness testimony is in the court of law, it is the lowest form of evidence in the court of science.

If all that you see, do, measure and discover is the will of a deity, then ideas can never be proven wrong, you have no predictive power, and you are at a loss to understand the principles behind most of the fundamental interconnections of nature.

Nothing is a thing: it's nothing. So I can imagine a place where there's not even nothing.

When Kennedy said, 'Let's go to the moon,' we didn't yet have a vehicle that wouldn't kill you on launch. He said we'll land a man on the moon in eight years and bring him back. That was an audacious goal to put forth in front of the American people.

People like death and mayhem.