Hello. The US is positive on an Iran deal but talks are still uncertain as the ceasefire deadline looms, many Americans question Trump’s temperament, and Chinese automakers at the Beijing car show take aim at Europe's premium brands.

Plus, NASA rover adds to the list of organic compounds detected on Mars.

Over the past three months, Canadian soldiers conducted a more than 5,000-kilometer snowmobile patrol in extreme Arctic conditions traveling from Inuvik, Northwest Territories to Churchill, Manitoba, braving blizzards and minus-60 degree Celsius temperatures in military exercises designed to prepare for a foreign threat – and demonstrate Canada’s ability to take care of itself.

That’s a tall order. The political climate has changed since Trump's repeated threats to make Canada an American state, take control of Greenland and withdraw from NATO, but the harsh realities of operating in Canada’s frozen north have not.

Performing a type of experiment never before tried beyond Earth, NASA's Curiosity rover has identified more organic compounds on Mars as scientists strive to learn whether the Red Planet ever harbored life.

The researchers said that five of the seven diverse organic compounds confirmed by the six-wheeled rover ‌had never previously been identified on Mars. The experiment also hinted at the presence of another organic compound that bears a structure similar to precursors to DNA, the molecule that carries genetic information in living organisms on our planet.