5. Radiation Exposure Levels: Numbers to Know
According to NASA’s Curiosity rover data, the average dose rate on Mars is about 0.67 millisieverts per day. That’s over 200 times higher than Earth’s annual background dose! For perspective, a single chest X-ray delivers roughly 0.1 millisieverts. On Mars, astronauts would experience the equivalent of multiple chest X-rays every week, underscoring the seriousness of the challenge.