What is Sunspots and Solar flares?

 Sunspots are darker,cooler areas on the surface of the Sun in a region called Photosphere. The photophere has a temperature of 5,800 degree kelvin. Sunspots have temperature of about 3,800 degree kelvin. They look dark only in comparison with the brighter and hotter regions of the Photosphere around them.

Sunspots can be very large, up to 50,000 in diameter. It has electrically charged gases that generates area of powerful magnetic forces. The sun's gases are constantly moving, which tangles, stretches and twists the magnetic fields. This motion creates a lot of activity on the sun's surface, called solar activity.

What are Solar Flares?

The magnetic field lines near the sunspots often tangles, cross, and reorganize. This can cause a sudden explosion of energy called a Solar Flares.

Solar flares are sometimes accompanied by a Coronal Mass Ejection (CME) , CME's are huge bubbles of radiations and particles from the sun. They explodes into space with very high speed when the sun's magnetic field lines suddenly reorganize.

Solar flares releases a lot of radiations into space. If a solar flares is very intense, the radiation it releases can interfere with our radio communication here on Earth.