In May 2016, a wildfire devastated the western Canadian city of Fort McMurray, destroying 600,000 hectares of forest and forcing around 88,000 residents to evacuate their homes. As the first anniversary of the blaze approaches, most of the locals have decided to come back, but they are still struggling to rebuild their lives. We went to find out how they are coming to terms with the natural disaster. But first, we take a closer look at the opposition leaders who are flying the flag in the growing protest movement against the Venezuelan president and his government.

And we see how a dry expanse of sand and stones in the north of Chile could hold the key to answering one of science's oldest questions: is there life on Mars?