Proof of ET by 2020

No forecast for 2020 would be complete without attempting to answer one of the most enduring questions in science: is there life elsewhere in the cosmos? And, if so, will we find it? The answer, according to Seth Shostak, senior astronomer at the SETI Institute, in Mountain View, California, is a simple "Yes". By the end of the next decade we will have found evidence of extraterrestrial life. The only issue to be decided is how we will actually make that monumental discovery. And according to Shostak, it will be a three-horse race: between Earth-based radio telescopes, planetary probes, and space telescopes.