Vision contributor Dan Cloer asks Dr. Leonard Hayflick about his argument of the inevitable relationship between aging and longevity.

Wendy Freedman serves as director of the Observatories of the Carnegie Institution of Washington. She spoke with Vision about the next era of astronomy.

Beginning with Project Ozma in 1960, and for the last 25 years through SETI, Frank Drake has spearheaded the quest to hear from other intelligent beings in the universe.

Our planet shows increasing signs of succumbing to our assault. There are many ideas on fixing the problem, but the solution lies close to home.

The last century was a time of cosmic exploration; George Hale’s contribution was in building tools that have given us greater access to the universe.

On July 20, 1969, Neil Armstrong and Buzz Aldrin made the first extraterrestrial steps for mankind after the lunar module Eagle landed on the moon.

For almost anyone alive on July 20, 1969, the first words from the Moon and man’s first steps are flashbulb events immortalized in the mind.

Alan B. Shepard, Jr. lived twice as long as many people expected. The first American in space, he lit America’s enthusiasm to rally behind the space program.

Just as a soap opera will not give valuable insight into real human relationships, finding another earth will not help us understand our place in the universe.

Paul Ehrlich’s dire predictions of the effect of a burgeoning world population never came to pass. Or maybe, he says, they simply haven’t yet.