India, Feb. 18 -- The Government of India issued the following news release:

A new study has accurately estimated the physical parameters of thermal and magnetic field structures of solar coronal holes which have significant influence on space weather that affects satellites, as well as the Indian summer monsoon rainfall.

Coronal holes, which are dark regions in X-ray and extreme ultraviolet images of the Sun, have open magnetic field lines and are hence important for understanding the interplanetary medium and space weather. The latitude dependence of temperature and the magnetic field strengths of these coronal holes have now been characterised accurately by astronomers from the Indian Institute of Astrophysics.

Discovered in the 1970s...