NASA experts have observed a hole on the Sun’s surface. A spaceship found a massive dark hole expanding over the surface of the sun. While photos could look scary to ordinary people because it could make them think of disasters, data shows that the massive hole should not worry us.
Holes on the sun’s surface are astronomical events that appear from time to time. These occur when low-density areas cause the star’s magnetic field to open up to space. This phenomenon allows the hot material to escape from the Sun, leaving the areas affected by much less combustion material, compared to their brighter, hotter surroundings.
Usually, the material would loop back onto the surface. But sometimes, the magnetic field reaches into space. Particles along these magnetic fields leave the sun, instead of being trapped near the surface.
Seen from Earth, the spots look a lot darker, like a hole is growing on the sun’s surface. NASA says that these dark spots can last up to months at a time, a cover as much as 25% of the Sun’s surface.
It seems that a dark hole is eating up the sun, but the sun is not shutting down yet. It’s only a natural, astronomical phenomenon. However, the coronal hole can still cause trouble for people back on Earth. The solar winds speeding outward from the sun’s corona could form solar storms.
Solar storms sometimes affect Earth’s communications systems. During geomagnetic storms, changes in the ionosphere can affect the GPS navigation or radio communications.
Coronal holes can play a part in understanding the special environment, but it’s still unknown what causes coronal holes to emerge on the Sun.
Against the son hot and dense irradiance, the coronal hole region appears darker. An interesting fact is the Aurora Borealis, which appears in the far northern sky, is actually made by the solar wind entering Earth’s magnetosphere. The coronal hole may be a sign that the Northern lights will be appearing in the sky.
NASA’s Solar Dynamic Observatory has been monitoring the sun ever since 2010. The hole was spotted earlier this month by the orbiting telescope. Don’t panic, though! This hole is harmless!
Do you think this coronal hole will disturb your Sat-Nav? Please tell us below!
Image Source – Flickr