TEDtalks SETI Part 1 I’ve watched an episode of TED Talks. I use the word “episode” because I saw it on Netflix. And they put relevant TED talks together. The series I watched is called “TEDTalks : Space Trek”. The talk was given by an old lady. She spoke in an elegant way to explain the vast of the cosmos and what kind of project SETI is. In one word, SETI is all about one question—“Are we alone?” SETI is a project to search for Extra Terrestrial Intelligence. They used a gigantic radio telescope to gather signals of the electromagnetic waves emitted from the stars. They got the data and analyze it to find whether the signal is not normal but artificial. I still remember that I downloaded a computer program developed by them many years ago. It was called SETI@Home. I installed that program. It would retrieve a small piece of data, and then analyze it when your computer is idle. After the analysis was finished, it would return the result back to their server. By this program, they can utilize the idle time in millions of the volunteers’ computers to provide the powerful computing ability for handling the tremendous demanding of their data analysis. For now, they haven’t gotten any positive sign yet. But they only looked up a tiny part of the sky.