NASA Spots A Giant Hole On The Surface Of The Sun

Posted: Jul 14 2016, 8:17am CDT | by , Updated: Jul 14 2016, 7:16pm CDT, in News | Latest Science News

 
NASA Spots a Giant Hole on the Surface of the Sun
Credit: Tom Yulsman

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NASA's Solar Dynamics Observatory (SDO) spots a massive coronal hole on Sun's surface and it is growing too.

The sun is a giant fireball sitting at the heart of our solar system and this fireball has been constantly monitored by NASA’s observatory.

Recently, NASA’s Solar Dynamics Laboratory or SDO has spotted a giant hole on the surface of the Sun and it is expanding as well. But there is no need to panic.

The presence of holes in the Sun is a natural phenomenon as they tend to pop up on the Sun’s surface from time to time. They are called coronal holes. According to NASA, coronal holes are low density regions of the Sun’s atmosphere and take place when the Sun’s magnetic field interacts with interplanetary space. Because these holes lack hot plasma, they have lower temperatures and thus appear much darker than their surroundings.

The dark holes can last for weeks to months and can cover as much as a quarter of the Sun’s surface. Coronal holes are visible in certain types of extreme ultraviolet light which is usually not possible for humans to see with the naked eye.

Coronal holes trigger high-speed solar wind. The solar wind escaped from the hole can reach Earth’s atmosphere and may cause interruptions in communion systems.

“Coronal holes are the source of a high-speed wind of solar particles that streams off the Sun some three times faster than the slower wind elsewhere.” NASA says.

Coronal holes can play an important role to understand the environment of the space but it is still uncertain what causes coronal holes to emerge on the surface of the Sun.

In the latest animation, the massive hole is seen spreading over the upper half of the Sun while the rest of the surface is filled with bright, hot solar material.

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