#2. The temperature on Mars
On planet Mars the Sun appears about half the size as it does on Earth. During a summer day on Mars, the temperature at the equator can reach as high as 70 degrees Fahrenheit (21 degrees Celsius), but the nighttime temperatures are deadly. On average, the temperature plunges to about minus 80 degrees F (minus 62 degrees C). This is something that would kill you over the course of hours if you are not properly warmed. In winter, near the poles temperatures can get down to minus 195 degrees F (minus 125 degrees C).