Ttc Chemistry

For thousands of years, stars have been the prime example of something unattainable and unknowable—places so far away that we can learn almost nothing about them. Yet amazingly, astronomers have been able to discover exactly what stars are made of, how they are born, how they shine, how they die, and how they play a surprisingly direct role in our lives. Over the past century, this research has truly touched the stars, uncovering the essential nature of the beautiful panoply of twinkling lights that spans the night sky.

Are we alone in the universe? Or does the cosmos pulse with diverse life forms? This is one of the most profound issues facing mankind—and one of the unresolved questions that science may finally be able to answer in this century. Both scenarios are mind-boggling and, to quote futurist Isaac Asimov, equally frightening. No matter what the answer, the implications are vast.