Sun To Reach Solar Maximum In 2 Years, May Lead To “Internet Apocalypse”
- July 14, 2023
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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Sun To Reach Solar Maximum In 2 Years, May Lead To “Internet Apocalypse”
Subject: Science and technology
Section :Space technology
Context:
- The Sun will reach “solar maximum” – a particularly active period – in 2025 and today’s digital world is not prepared for it.
About Solar Maximum:
- The sun goes through a natural solar cycle approximately every 11 years. The cycle is marked by the increase and decrease of sunspots– visible as dark blemishes on the sun’s surface, or photosphere.
- The greatest number of sunspots in any given solar cycle is designated as “solar maximum.” The lowest number is “solar minimum.”
- Impacts:
- This increased solar activity can cause extreme space weather events, including solar flares and eruptions.
- It can also disrupt radio communications and the power grid and have serious health consequences for astronauts.
- A strong solar storm could hit Earth – a rare event that has not happened in the interconnected world so far – causing widespread internet outages.
What is the Solar Cycle?
- The Sun is a huge ball of electrically-charged hot gas. This charged gas moves, generating a powerful magnetic field.
- Every 11 years or so, the Sun’s magnetic field completely flips. This means that the Sun’s north and south poles switch places.
- Then it takes about another 11 years for the Sun’s north and south poles to flip back again.
- Thus, the solar cycle is the cycle that the Sun’s magnetic field goes through approximately every 11 years.
- The solar cycle affects activity on the surface of the Sun, such as sunspots which are caused by the Sun’s magnetic fields.
- As the magnetic fields change, so does the amount of activity on the Sun’s surface.
- The beginning of a solar cycle is a solar minimum, or when the Sun has the least sunspots. Over time, solar activity—and the number of sunspots—increases.
- The middle of the solar cycle is the solar maximum, or when the Sun has the most sunspots.
- As the cycle ends, it fades back to the solar minimum and then a new cycle begins.