Alert! Earth could be struck by powerful solar flares today; Know the danger | Tech News

Alert! Earth could be struck by powerful solar flares today; Know the danger

Sunspots AR3169 and AR3176 pose a serious threat from solar flares on the Earth today, December 29. Know how serious the impact can be.

By: HT TECH
| Updated on: Dec 29 2022, 12:20 IST
Think you know our Sun? Check out THESE 5 stunning facts
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1/5 The Sun is the largest object in our solar system and is a 4.5 billion-year-old star – a hot glowing ball of hydrogen and helium at the center of the solar system. It is about 93 million miles (150 million kilometers) from Earth, and without its energy, life as we know it could not exist here on our home planet. (Pixabay)
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2/5 The Sun’s volume would need 1.3 million Earths to fill it. Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it. The hottest part of the Sun is its core, where temperatures top 27 million degrees Fahrenheit (15 million degrees Celsius). The Sun’s activity, from its powerful eruptions to the steady stream of charged particles it sends out, influences the nature of space throughout the solar system. (NASA)
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3/5 According to NASA, measuring a “day” on the Sun is complicated because of the way it rotates. It doesn't spin as a single, solid ball. This is because the Sun’s surface isn't solid like Earth's. Instead, the Sun is made of super-hot, electrically charged gas called plasma. This plasma rotates at different speeds on different parts of the Sun. At its equator, the Sun completes one rotation in 25 Earth days. At its poles, the Sun rotates once on its axis every 36 Earth days. (NASA)
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4/5 Above the Sun’s surface are its thin chromosphere and the huge corona (crown). This is where we see features such as solar prominences, flares, and coronal mass ejections. The latter two are giant explosions of energy and particles that can reach Earth. (Pixabay)
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5/5 The Sun doesn’t have moons, but eight planets orbit it, at least five dwarf planets, tens of thousands of asteroids, and perhaps three trillion comets and icy bodies. Also, several spacecraft are currently investigating the Sun including Parker Solar Probe, STEREO, Solar Orbiter, SOHO, Solar Dynamics Observatory, Hinode, IRIS, and Wind. (Pixabay)
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Solar flares can hit the Earth today, December 29, according to NOAA predictions. (SDO/NASA)

After a relatively quiet Christmas period, the Sun has sprung back into action again. With just two days to the new year, Earth is now facing new threats of solar flares. Two new sunspots have emerged on the Sun named AR3169 and AR3176 which are prone to set off a massive explosion. There is a high possibility of the sunspots exploding today, December 29, and blasting the strongest X-class solar flares towards our planet. These solar disturbances can cause multiple challenges for us including GPS disruption, radio blackouts and even fluctuations in power grids. Read on to know more about the solar flare threat.

The development was reported by SpaceWeather.com which noted on its website, “NOAA forecasters say there is a 55% chance of M-class solar flares and a 15% chance of X-flares today. Sunspots AR3169 and AR3176 both pose a threat for such explosions. Neither is directly facing Earth, but they're close enough for radio blackouts and glancing-blow CMEs”.

Solar flare scare for Earth

An X-class solar flare is the strongest class of solar flares. These are powerful enough to not only disrupt GPS, wireless communications and radio waves but also damage power grids and sensitive electronics such as pacemakers and supercomputers. And while a solar flare needs to be extremely strong, the likes of which have not been seen since the Carrington event in 1859, to actually damage surface level electronics, a major blow to the radio waves and other wireless communications can also have dangerous consequences.

With the new year just days away, airlines are at their busiest period of the year. And if a solar flare strikes the Earth at this time, it can impact radio signals and GPS, causing many flights in the radiation exposed area to fly blind. This can also cause delays and cancellations of flights. So, if you're planning to travel today or tomorrow, make sure to check your flight schedule before you head out.

DSCOVR satellite's role in solar weather monitoring

NOAA monitors the solar storms and Sun's behavior using its DSCOVR satellite which became operational in 2016. The recovered data is then run through the Space Weather Prediction Center and the final analysis is prepared. The different measurements are done on temperature, speed, density, degree of orientation and frequency of the solar particles.

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First Published Date: 29 Dec, 12:14 IST
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