NASA's IRIS mission to launch in June
Tuesday, June 4, 2013 - 16:00
in Astronomy & Space
Lying just above the sun's surface is an enigmatic region of the solar atmosphere called the interface region. A relatively thin region, just 3,000 to 6,000 miles thick, it pulses with movement: Zones of different temperature and density are scattered throughout, while energy and heat course through the solar material.