Societies Will, Of Course, Wish To Exercise

Finding The Occasional Straw Of Truth Awash In A Great Ocean Of Confusion And Bamboozle Requires Intelligence, Vigilance, Dedication, And Courage. But If We Don't Practice These Tough Habits Of Thought, We Cannot Hope To Solve The Truly Serious Problems That Face Us --- And We Risk Becoming A Nation Of Suckers, Up For Grabs By The Next Charlatan Who Comes Along.

Few Scientists Now Dispute That Today's Soaring Levels Of Carbon Dioxide And Other Gases In The Atmosphere Will Cause Global Temperature Averages To Rise By As Much As Nine Degrees Fahrenheit Sometime After The Year 2000.

Some 5 Billion Years From Now, There Will Be A Last Perfect Day On Earth... Then The Sun Will Begin To Die, Life Will Be Extinguished, The Oceans Will Boil And Evaporate Away.

At The Heart Of Science Is An Essential Balance Between Two Seemingly Contradictory Attitudes-an Openness To New Ideas, No Matter How Bizarre Or Counterintuitive They May Be, And The Most Ruthless Skeptical Scrutiny Of All Ideas, Old And New. This Is How Deep Truths Are Winnowed From Deep Nonsense.

The Near Side Of A Galaxy Is Tens Of Thousands Of Light-years Closer To Us Than The Far Side; Thus We See The Front As It Was Tens Of Thousands Of Years Before The Back. But Typical Events In Galactic Dynamics Occupy Tens Of Millions Of Years, So The Error In Thinking Of An Image Of A Galaxy As Frozen In One Moment Of Time Is Small.