The speaker, Carolyn Porco, gave a presentation on why the discovery of life on another planet is important. She delivered the factual and well-organized talk using spectacular photos from her team's discoveries to catch the audience's attention. Porco is well-known in her field and dressed professionally in black and white, using gestures to compare photos and emphasize her point that finding life elsewhere would be profoundly interesting.

1. Presentation Review

2. Speaker and Theme Carol y n Porco Why discovery of life on another planet is so important?

5. Carolyn gesticulates

6. Carolyn is dressed in black- and- white

7. Porco designs She compares photos to one another

8. http://www.youtube.com/watch?v=LAA4TstxLYE