Earth's magnetic field is weakening. Know how it will affect the planet
4 years, 7 months ago

Earth's magnetic field is weakening. Know how it will affect the planet

India TV News  

The European Space Agency scientists have warned that the earth's geomagnetic field is weakening in some areas area between Africa and South America. The ESA has termed the phenomenon of this change of geomagnetic field or the surface magnetic field as 'South Atlantic Anomaly'. Earth's magnetic field, which exists due to metal and liquid outer core about 3,000 km below the surface, creates electric currents that generate and change our electromagnetic fields. The surface magnetic field, which spans around tens and thousands of kilometers away from the earth, protects us from cosmic radiations as well as it aids the communication of satellites and spacecraft. According to the recent finding, the South Atlantic Anomaly is also causing the decline of the geomagnetic field continuously as it has lost almost 10 percent of its strength in the last two decades.

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History of this topic

Massive 'weak spot' in Earth's magnetic field is growing... and it could have huge consequences
2 weeks, 1 day ago

Massive 'weak spot' in Earth's magnetic field is growing... and it could have huge consequences

Daily Mail  

Scientists have discovered that the 'weak spot' in Earth's magnetic field is growing, allowing harmful radiation to come closer to our planet's surface. While scientists believe that the SAA's weakening magnetic intensity is still within the range of normal variation, recent studies have shown that it is starting to split from a single blob into two distinct regions of minimal …

Cosmic Rays Unleash Ancient Magnetic Mayhem
2 months, 3 weeks ago

Cosmic Rays Unleash Ancient Magnetic Mayhem

India Today  

Scientists have uncovered new insights into what happened when Earth's magnetic field dramatically flipped 40,000 years ago. During the Laschamps event, Earth's magnetic field weakened to a mere 5 per cent of its current strength, allowing an influx of cosmic rays to penetrate our atmosphere. The weakened magnetic field had far-reaching effects, potentially contributing to climate change, the extinction of …

Massive eruption from Sun hits Earth, sparks geomagnetic storm
1 year, 3 months ago

Massive eruption from Sun hits Earth, sparks geomagnetic storm

India Today  

Earth's magnetic field was hit by a Coronal Mass Ejection that arrived over 12 hours earlier than anticipated after exploding from the Sun. The recent CME has caused a geomagnetic storm, a complex oscillation of Earth's outer magnetic field. This generates electric currents in the near-Earth space environment, which in turn produces additional magnetic field variations, collectively known as a …

Indian scientists explore what makes a planet habitable
1 year, 5 months ago

Indian scientists explore what makes a planet habitable

India Today  

Is there life beyond Earth? The team from the Center of Excellence in Space Sciences India and the Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata used computational modeling to investigate how different combinations of planetary and stellar magnetic field strengths might affect a planet's magnetic configuration and atmospheric loss. "Whether a planet can host life …

Can Weak Spots in Earth's Magnetic Field Cause Telephones, Navigation Systems to Crash?
4 years, 4 months ago

Can Weak Spots in Earth's Magnetic Field Cause Telephones, Navigation Systems to Crash?

News 18  

Earth’s magnetic change is undergoing a rather significant change, and it is not simply the natural shift in magnetic flux that occurs all around the planet. Last week, NASA revealed that the South Atlantic Anomaly, the name given to a weak spot of magnetic field activity that hovers somewhere around South America and the South Atlantic Ocean, is undergoing a …

Earth's magnetic field anomaly over the Atlantic has split in two, now expanding westward: NASA
4 years, 4 months ago

Earth's magnetic field anomaly over the Atlantic has split in two, now expanding westward: NASA

Firstpost  

The anomaly’s ‘valley’ – the area that had the weakest magnetic field strength – has split into two lobes, the agency has said. The anomaly’s “valley” or the area that had the “minimum field strength”, has split into two lobes, said NASA’s Goddard Space Flight Center in a recent post. The South Atlantic anomaly is a wide area ranging on …

NASA confirms dent in Earth's magnetic field splitting into two
4 years, 4 months ago

NASA confirms dent in Earth's magnetic field splitting into two

India TV News  

The protective magnetic field around Earth is in the process of splitting into two, the National Aeronautics and Space Administration has discovered. In order to highlight the importance of the Earth's magnetic field, it is pertinent to mention that it acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. A weak magnetic field …

Dent on Earth's magnetic field splitting in two, Nasa warns of damage to satellites, navigation
4 years, 4 months ago

Dent on Earth's magnetic field splitting in two, Nasa warns of damage to satellites, navigation

India Today  

A dent present on the protective magnetic shield over the surface of Earth is widening and has raised concerns among scientists. WHAT HAS CHANGED WITH SAA The South Atlantic Anomaly has existed on the Earth’s magnetic field for years. Nasa’s Earth scientists are now monitoring the changes to predict future changes and prepare for the future challenges this weak spot …

Scientists trace back strange behavior in South Atlantic magnetic field 11 million years
4 years, 5 months ago

Scientists trace back strange behavior in South Atlantic magnetic field 11 million years

CNN  

CNN — In case this was on your 2020 list of worries, the Earth’s magnetic field is not about to reverse itself. Strange behavior in the South Atlantic magnetic field can be traced back as far as 11 million years ago, and it’s unlikely to be linked to any impending reversal of the Earth’s magnetic field, researchers have found. The …

South Atlantic Anomaly: Earth's magnetic field is weakening, believe scientists
4 years, 7 months ago

South Atlantic Anomaly: Earth's magnetic field is weakening, believe scientists

India Today  

Earth's magnetic field is weakening in an area between Africa and South America, scientists with The European Space Agency say. This behaviour of the earth's magnetic field in the area between Africa and South America is being termed the 'South Atlantic Anomaly'. While stating that the Earth's magnetic field is vital to life on the planet since it protects us …

Earth’s roaming magnetic poles create longer periods of instability, study says
5 years, 5 months ago

Earth’s roaming magnetic poles create longer periods of instability, study says

CNN  

CNN — Unlike its geographical poles, Earth’s magnetic poles that serve as the foundation of our navigation are actively moving. The north magnetic pole has been slowly moving across the Canadian Arctic toward Russia since 1831, but its swift pace toward Siberia in recent years at a rate of around 34 miles per year has forced scientists to update the …

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