Is a solar storm going to hit Earth?
Impacts to communications, navigation and power systems can and do happen, but the X1 solar flare mentioned here happened last week. ... It was rated a strong event rather than the severe event described in these articles. WRAL.comNo, there isn't a solar storm headed to Earth today
News about a powerful solar storm approaching Earth at a speed of 1.6 million kmph with the potential to disrupt mobile phone signals surfaced online earlier this week.
It was widely reported by several media outlets that the purported storm would hit our planet on Sunday or Monday and cause major disruptions in mobile communication and GPS devices.
A report on a website called Spaceweather.com read the following, "THE SOLAR WIND IS COMING: Later today, a high-speed stream of solar wind is expected to hit Earth's magnetic field. Flowing from an equatorial hole in the sun's atmosphere, wind speeds could top 500 km/s. Full-fledged geomagnetic storms are unlikely, but lesser geomagnetic unrest could spark high latitude auroras. Aurora alerts: SMS Text.",
But now, it turns out that all the claims swirling about the possible solar storm hitting earth are untrue. A fact-check by Associated Press states that experts have not detected any solar storm making its course to Earth.
The program coordinator for the Space Weather Prediction Centre, Bill Murtagh, confirmed to the news agency that there is no solar system approaching.
Although there is no storm approaching Earth, Murtagh did confirm the presence of a solar flare that took place on July 3. It was the first big flare of this solar cycle and the brightest in four years.
“We typically get 150 of them over an 11-year cycle. Fortunately, we are 93 million miles away from the sun so we have Earth’s magnetic field and atmosphere which protects us from the harmful emissions from these eruptions," Murtaugh was quoted as saying by Associated Press
A solar storm, in the simplest of definitions, is a disturbance on the Sun which can emanate outward across the heliosphere and affect an entire Solar System, including Earth.
A solar storm is also referred to as a geomagnetic storm that can cause a temporary disturbance of the Earth's magnetosphere due to a solar wind shock wave.
A Solar flare is a large explosion in the Sun's atmosphere, that is caused by tangling or reorganising of magnetic field lines near sunspots. A Solar flare is a large explosion in the Sun's atmosphere, that is caused by tangling or reorganising of magnetic field lines near sunspots.
Read full article at Times Now
11 July, 2021 - 02:24am
New Delhi, July 15: In a recent development, a high-speed solar storm that is approaching the Earth at a speed of 1.6 million kilometres per hour is likely to hit our planet's magnetic field later today, affecting electricity supply and communication infrastructure around the world.
The solar flare, flowing from an equatorial hole in the sun's atmosphere that was first detected on July 3, can travel at a maximum speed of 500 km/second, according to spaceweather.com. Although full-fledged geomagnetic (magnetic field associated with Earth) storms are unlikely, lesser geomagnetic unrest could spark high-latitude auroras.
A solar storm is a temporary disturbance of the Earth's magnetosphere caused by a solar wind shock wave and/or cloud of a magnetic field that interacts with the Earth's magnetic field.
Our sun's adolescence was stormy-and new evidence shows that these tempests may have been just the key to seeding life as we know it.
Some 4 billion years ago, the sun shone with only about three-quarters the brightness we see today, but its surface roiled with giant eruptions spewing enormous amounts of solar material and radiation out into space. These powerful solar explosions may have provided the crucial energy needed to warm Earth, despite the sun's faintness. The eruptions also may have furnished the energy needed to turn simple molecules into complex molecules such as RNA and DNA that were necessary for life. The research was published in Nature Geoscience on May 23, 2016, by a team of scientists from NASA.
The Earth's magnetosphere is created by our magnetic field and protects us from most of the particles the sun emits. When a CME or high-speed stream arrives at Earth it buffets the magnetosphere. If the arriving solar magnetic field is directed southward it interacts strongly with the oppositely oriented magnetic field of the Earth. The Earth's magnetic field is then peeled open like an onion allowing energetic solar wind particles to stream down the field lines to hit the atmosphere over the poles. At the Earth's surface a magnetic storm is seen as a rapid drop in the Earth's magnetic field strength. This decrease lasts about 6 to 12 hours, after which the magnetic field gradually recovers over a period of several days.
Modern society depends on a variety of technologies susceptible to the extremes of space weather. Strong electrical currents driven along the Earth's surface during auroral events disrupt electric power grids and contribute to the corrosion of oil and gas pipelines.
Changes in the ionosphere during geomagnetic storms interfere with high-frequency radio communications and Global Positioning System (GPS) navigation. During polar cap absorption events caused by solar protons, radio communications can be compromised for commercial airliners on transpolar crossing routes.
Exposure of spacecraft to energetic particles during solar energetic particle events and radiation belt enhancements cause temporary operational anomalies, damage critical electronics, degrade solar arrays, and blind optical systems such as imagers and star trackers.
Solar storms can last only a few minutes to several hours but the affects of geomagnetic storms can linger in the Earth's magnetosphere and atmosphere for days to weeks.