Dissecting English leaders debate; Measles cases multiply in Canada; Is there life beyond Earth?

It's debate night again in Montreal. The jabs each federal political party leader took at each other; how they defended their policies; how each leader fared; their change in demeanour compared to last night's French debate; and why news conferences with the leaders after the English debate were cancelled at the last minute. Measles cases are multiplying in parts of Canada. What doctors say needs to be done to reverse the troubling trend. The sex assault allegations surfacing against a New York Rangers player. How hundreds of thousands of people in Puerto Rico have been left powerless again. And is there life beyond Earth? Why some scientists say they've found the "strongest evidence" so far, and why others are cautiously hopeful. Learn more about your ad choices. Visit megaphone.fm/adchoices