(Nation Multimedia) The sun will go into "hibernation" mode around 2030, and it has already started to get sleepy. At the Royal Astronomical Society's annual meeting in July, Professor Valentina Zharkova of Northumbria University in the UK confirmed it - the sun will begin its Maunder Minimum (Grand Solar Minimum) in 15 years. Other scientists had suggested years ago that this change was imminent, but Zharkova's model is said to have near-perfect accuracy.
So what is a "solar minimum"?
Our sun doesn't maintain a constant intensity. Instead, it cycles in spans of approximately 11 years. When it's at its maximum, it has the highest number of sunspots on its surface in that particular cycle. When it's at its minimum, it has almost none. When there are more sunspots, the sun is brighter. When there are fewer, the sun radiates less heat toward Earth.
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