For six days, it will collect images of the X-rays emanating from the edges of our planet's vast magnetosphere. This comprehensive view could illustrate how this protective boundary responds to ...

Chorus waves are mysterious, chirping signals produced by spiraling plasma inside our planet's magnetic field. But a new detection suggests scientists may understand less about them than first thought ...

In January 2008, 33 years after Mariner 10 flew past the solar system's innermost planet, MESSENGER crossed Mercury's magnetosphere. Ancient volcanoes, contractional faults, and a rich soup of ...