Calories in Vodka Martini. Calories in Vodka Martini 3 oz. *Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. Some of these foods were entered by users and are subject to error.
Venus has an atmosphere much denser than Earths, while Mars has an extremely thin atmosphere. All the gas giant planets (Jupiter, Saturn, Uranus, Neptune) have significant atmospheres, as their name implies! Even Pluto, which is not officially a planet anymore, has an atmosphere.
Mars still has an atmosphere, but its pressure is 100 times less than Earth's and it's almost entirely composed of CO 2 âabout the last thing we'd want to breathe. Venus has roughly the same concentration of CO 2 as Mars, yet its atmosphere went in precisely the opposite direction.