https://twitter.com/DailyOnTech http://www.facebook.com/DailyOnTech Though it doesn't look like a nice place to live now, Mars may have had an atmosphere more like ours on Earth! But how did it lose it? One way a planet can lose its atmosphere is through a process called 'sputtering.' In this process, atoms are knocked away from the atmosphere due to impacts from energetic particles. Learn more in this video!