Kepler Presentation: Is There Anybody Out There?

By Andrew Ivey | Presentations

Jul 28

The age-old question, “Is there anybody out there?” was put into a historical context by Harvard astronomer, Dimitar Sasselov, in his TED Global presentation in Oxford.

Sasselov, who is one of the team leaders in the NASA Kepler planet-hunting telescope program, began his presentation with a reference to a recent burial. The reburial of Nicolaus Copernicus in Frombork, Poland following the discovery of his remains in the cathedral in 2005.

His presentation showed how our understanding of the solar system was turned around by Copernicus; the sun became the central body and the earth became a component.

That understanding remains central to the NASA Kepler mission which sets out to observe the small and medium sized planets in the solar system. Large planets have been discovered in the last ten years or so, but they are not as significant for life-support as smaller planets.

The presentation noted how Kepler observation and statistical extrapolation suggests that there are many earth-like small planets capable of sustaining life: perhaps as many as 100 million.

It was this figure that seized the news headlines after Sasselov’s presentation.

But the essence of his TED presentation was captured in the questions he then asked his audience:

“Is life on other planets the same as life on Earth?”

and,

“Is Earth biochemistry universal?”

Using video, images and graphs the Harvard astronomer set out some of the thinking and many of the lines of enquiry. He clarified that his team doesn’t have answers yet. There’s so much more to know.

But he forced his audience to think of the links between biology and astronomy…links that he had referenced with the DNA fingerprinting of Copernicus’ body in Frombork. Using his own neck tie as a prop he showed how insignificant, in terms of quantity, is the scale of life in the universe.

But, referring back to his Copernicus introduction, he noted how significance might be a function of time, not just quantity. That is, our stewardship of life on earth is significant with the relative youth of our solar system. That relative youth suggests that we are not being too fanciful about supporting life systems on other planets…eventually. It’s all about time.

A fascinating presentation from an inspiring presenter.

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About the Author

The Principal Trainer at training business Time to Market. Based in Oxford, I run presentation and public speaking training courses, coaching sessions and seminars throughout the UK. Andrew Ivey on Google+

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