![ELI5: How did Mars lose it's global magnetic field that protected it's atmosphere from the Sun's cosmic radiation? Could the same thing happen to Earth? : r/explainlikeimfive ELI5: How did Mars lose it's global magnetic field that protected it's atmosphere from the Sun's cosmic radiation? Could the same thing happen to Earth? : r/explainlikeimfive](https://external-preview.redd.it/w_myl83m5vXArc8BqtqWtMqe66XH30MYkGMBbfk0uV0.jpg?width=640&crop=smart&auto=webp&s=ca864c5ed6c3d4822a59284555d10ca97ecb3325)
ELI5: How did Mars lose it's global magnetic field that protected it's atmosphere from the Sun's cosmic radiation? Could the same thing happen to Earth? : r/explainlikeimfive
![Joalda Morancy on Twitter: "...great, but all these efforts are pointless if our atmosphere is going to just get stripped away due to the lack of magnetic field. It is believed that Joalda Morancy on Twitter: "...great, but all these efforts are pointless if our atmosphere is going to just get stripped away due to the lack of magnetic field. It is believed that](https://pbs.twimg.com/media/Ea1qMKkXsAAyb8Z.jpg:large)
Joalda Morancy on Twitter: "...great, but all these efforts are pointless if our atmosphere is going to just get stripped away due to the lack of magnetic field. It is believed that
![We are all Martians!': space explorers seek to solve the riddle of life on Mars | Mars | The Guardian We are all Martians!': space explorers seek to solve the riddle of life on Mars | Mars | The Guardian](https://i.guim.co.uk/img/media/eb6ede3d42ebe5d572ed3f1f435c08a19b841730/0_100_8000_4800/master/8000.jpg?width=620&quality=85&auto=format&fit=max&s=f1cf85176e82f195cbc1153621d5f3f2)