In Ancient Greece, the Sun was believed to be a god named Helios, who drove his shining carriage pulled by a quadriga along a dangerous and unpaved path through the sky. This was probably the first model of the Sun. Nowadays, we not only have a somewhat better theory but also know that, even during the Ancient Greek era, the Sun was not exactly like in this picture (from http://www.theoi.com/Titan/Helios.html)
In the May issue of the Life of a Scientist we have the pleasure to talk to Prof. Ilya Usoskin from the Univeristy of Oulu, Finland. Among numerous things, he is the head of the Oulu Cosmic Ray station and receipent of this year’s Julius Bartels EGU Medal; a decision that was based: “on his contributions to the understanding of the heliosphere, long-term changes in the solar activity ...[Read More]