Powerful solar explosions, like the one observed in 2012 (above), can cause severe disruptions on Earth (Credit: NASA/Solar Dynamics Observatory)

Our seemingly calm Sun can have a nasty temper that comes in the form of powerful explosions. The star's unpredictable outbursts can disrupt satellites in orbit and be dangerous for astronauts. Though the flares are well-documented, researchers have never been able to pinpoint the cause of the erratic behavior. Now, the Sun's incredible multi-staged "tantrum" may help scientists get closer to solving the long-standing mystery.