Madhulika Guhathakurta

Nota: Este archivo abarca los artículos publicados por el autor desde el 1 de Julio de 2008. Para fechas anteriores realice una búsqueda entrecomillando su nombre.

Lately, the Sun has been behaving a bit strangely. In 2008 and 2009, it showed the least surface activity in nearly a century. Solar flare activity stopped cold and weeks and months went by without any sunspots, or areas of intense magnetism. Quiet spells are normal for the Sun, but researchers alive today had never seen anything like that two-year hibernation.

Now that the Sun is approaching the peak of its magnetic cycle, when solar storms — blasts of electrically charged magnetic clouds — are most likely to occur, no one can predict how it will behave. Will solar activity continue to be sluggish, or will solar storms rage with renewed vigor?…  Seguir leyendo »