Picture of the Day

Plasma Loops

Loops of 1,800,000-degree Fahrenheit plasma rising from the sun’s surface may be the first signs of solar storms that threaten satellites orbiting Earth and power transmission grids on the ground. A new study published in Astrophysical Journal Letters shows how Doppler measurements that help track storms on Earth may also be useful for understanding storms on the sun. Astrophysicists combined Doppler techniques with images and data from a space-based telescope to observe, for the first time, the loops flowing up from the sun’s surface at more than 12 miles per second.

Visit Website | Image credit: SDO/AIA (NASA)