Already our ancestors realized that their lives depended upon the Sun, a powerful source of light and heat for life on Earth.

To understand our nearest star, many scientists around the world turn telescopes and satellites toward it, but to comprehend the fascinating data they recorded, we need the aid of complex mathematical models.

In my short talk, I will present the challenges and the importance of modern solar physics with particular attention to numerical simulations, which prove to be an invaluable tool to unlock the secrets of our host start.

As a multi-dimensional social process, migration affects both sending countries, receiving countries, and migrants themselves. The concept of sustainable migration seeks to balance the interests of all of the actors involved in order to make the impact of migration sustainable. It is particularly important in the era of globalization, with societies interconnected in multiple ways. My talk will focus on the links between three phenomena: migration, health and sustainable development.

Every year, 10-15 meteorites fall somewhere on the Earth. Some are accompanied by spectacular fireballs (like the one we saw over Oslo in July this year) and collected immediately after the fall. Other come unnoticed and are found by luck only, many years later. Norway is home to 15 meteorites and new ones can still be found. What to do if you think, you have found a meteorite? How to recognize it? Can we not only wait for luck but also actively do a meteorite search? Why scientists care about meteorites? In this talk, I will give answers to these questions by telling about my work on meteorites, particularly on most recent Norwegian ones.