coronal mass ejection

Astronomers See an Enormous Coronal Mass Ejection… On Another Star!

Astronomers See an Enormous Coronal Mass Ejection… On Another Star!

For the first time ever, astronomers have witnessed a coronal mass ejection (CME) on a star other than our very own Sun. The star, named HR 9024 (and also known as OU Andromeda,) is about 455 light years away, in the constellation Andromeda. It’s an active, variable star with a strong magnetic field, which astronomers say may cause CMEs.

Scientists Have Proposed Building an Earth-Sized Shield to Protect Our Planet

Scientists Have Proposed Building an Earth-Sized Shield to Protect Our Planet

A massive solar storm called a coronal mass ejection could knock out Earth's electrical grid and communication systems, causing trillions of dollars in damage. With such an event likely in the future, two astrophysicists have proposed the construction of a shield to protect Earth.