A new study showed that magnetic flux cancellation and reconnection drive the recurrent fan-shaped jets in the Sun's chromosphere.

Asteroids bring an image of shooting stars streaking across the sky. But did you know, they were the reason behind one of the biggest mass extinction events in the history of life? Often harmless, asteroids have been striking the earth for millions of years and there are still millions out there, wandering in outer space. On the occasion of International Asteroid Day, let us learn about these incredible space rocks and why it is important to track and study them.