Scientists at the European Space Agency have created an animation showing Mars that's been strung together from photos of a desert canyon on the planet.
The only break much of America can hope for anytime soon from eye-watering dangerous smoke from fire-struck Canada is brief bouts of shirt-soaking sweltering heat and humidity from a southern heat wave that has already proven deadly, forecasters say.
Over 120 million Americans were under air quality alerts on Wednesday from the smoke of the Canadian wildfires and it will continue on Thursday. Meanwhile, the heat continues in the Southern states.