Have you ever wanted to move to Mars? By 2024, the Dutch-run nonprofit organization aims to launch a four-person crew on the first human trip to Mars, where it will establish a self-sustaining human settlement on the chilly, barren red planet. On Mars, a year would be 687 days, but the year is split up evenly into 4 seasons, just like Earth. You'd have to wait a long time until your next birthday! It would be a lot colder, it is 142,000,000 miles away from the sun and the average temperature is -81 degrees Fahrenheit, brrrr! You couldn't breathe without a suit because the air is 96% carbon dioxide, and has no oxygen at all! The gravity on Mars is 62.5% less than the gravity on Earth causing a lot of trouble with keeping things on the ground. It would be very hard to live there, but if scientists found a way  to live underwater, they'll probably find a way to live on Mars.