Science

NASA takes a photo of the “smiling” sun. It’s not as sweet as it looks.

NASA takes a photo of the "smiling" sun.  It's not as sweet as it looks.
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It turns out that everyone who was a smiling sunbather was like that as a child scientifically proven – somewhat – true. Last week, NASA’s Solar Dynamics Observatory captured a picture of the largest object in our solar system that looks like the Stay Puft Marshmallow Man from “Ghostbusters,” the baby-faced “Teletubbies” sun, or a jack-o’-lantern (if that exists). Re-enter the Halloween spirit).

But what does it look like? In the Scrub Daddy sponge flaring up may not be as sweet as it seems. It can create sun emojis for us on Earth nice aurora view — or it could indicate problems for the planet’s telecommunications systems.

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The sun is, in essence, “the largest nuclear reactor in our solar system,” he said. Brian Keating, professor of physics at the University of California, San Diego. The massive, swirling ball of glowing hot gas has a wave of motion happening every second—from the conversion of hydrogen into helium, which emits the same amount of heat as several nuclear bombs, to electrical storms and solar earthquakes.

Keating told The Washington Post that some of this solar activity was captured by a NASA satellite on Wednesday.

In the image, the triple patches that make up the “face,” invisible to the human eye because they are in the ultraviolet spectrum, are known as coronal holes, or slightly cooler parts of the sun’s outer layer. , which typically has a temperature of about 10,000 degrees Fahrenheit.

“We’re talking about a few hundred degrees, so it’s not like some ski resort,” Keating said. “But because they’re so dark and we’re looking at ultraviolet radiation that the naked eye can’t see [NASA satellite] sees them as dark holes.’

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Crown holes are not fair interesting shapes moving around the surface of the sun. These are areas of high magnetic field activity that send a continuous stream of solar wind, or protons, electrons, and other particles, into the universe.

“More than a smiley face, the eyes look like flashing laser beams that send particles that can cause serious disruption to Earth’s atmosphere,” Keating said.

When particles carrying an electric charge hit the planet in small pieces doses, colorful auroras can follow bright images caused by the interaction of atmospheric gases with the sun’s excited energy shoots. Problems arise when large numbers of tiny particles hit Earth, Keating said. Instead of being blown into the Earth’s magnetic field, they can be picked up by radio antennas and disrupt radio, television, and other communications channels. A severe solar storm can even damage power grids and cause power outages, Keating added.

NASA’s Parker Solar Probe flew through the Sun’s upper atmosphere on December 14 and sampled its particles and magnetic fields. (Video: NASA Goddard)

while Pictures of the smiling sun were taken earlier – for example, after that in 2013 “reach the limit” or in 2014, NASA called it a “Pumpkin Sun”— The worst-case scenario Keating describes hasn’t happened in almost two centuries. It was the last intense geomagnetic storm that affected the Earth so much 1859 Carrington Incidentcaused fires at several telegraph stations as auroras were seen in tropical regions.

I said that such a mass event is long overdue.

“Scientists expect this to happen with a probability of a few percent every year on average, and we’ve dodged all these magnetic bullets for so long,” Keating said. “So it can be really scary, and the consequences can be even more dramatic, especially in our current technology-dependent society.”

Particles from the Sun from the last smile event could reach Earth in time for the scariest night of the year.

“We might have something coming up for Halloween night,” Keating said. “Very scary, but hopefully not too scary.”

National Oceanic and Atmospheric Administration Center for Space Weather Predictions given observing a small geomagnetic storm on Saturday, warning that conditions could change from “unstable” to “active”. Flares are expected to continue through Wednesday.

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