Sun vs. Web
Liam Reilly
| 13-08-2025
· Science Team
Hey Lyyker, let’s imagine a morning where you roll out of bed, grab your phone, and… nothing. No Instagram scroll, no Netflix binge, no online food delivery. Your Wi-Fi isn’t just “slow” — the internet itself is gone. Globally. Sounds like a bad tech nightmare, right? Well, this isn’t just science fiction — it’s something scientists are seriously warning us about.
The culprit? A powerful natural phenomenon called a solar storm.

What Exactly Is a Solar Storm?

Think of the Sun as a giant nuclear reactor with a bit of a temper. Most days, it’s calm enough, sending us the light and warmth we need. But sometimes, it throws a tantrum in the form of a Coronal Mass Ejection (CME) — a massive burst of charged particles and magnetic fields shot out into space.
These CMEs can be truly monstrous. We’re talking billions of tons of solar material, traveling at speeds over a million miles per hour. When one of these is aimed straight at Earth, it crashes into our planet’s magnetic field, causing a geomagnetic storm. And that’s when things start to get… interesting.

How Can It Break the Internet?

Here’s the thing: the internet isn’t floating in some invisible cloud. It’s built on a very real, very physical network. Sure, Wi-Fi routers handle local traffic, but the global internet depends on undersea fiber-optic cables linking continents.
While fiber-optic cables themselves are surprisingly resistant to solar storms, they rely on repeaters — small devices placed every 50–150 km along the cables to boost signals. These repeaters contain delicate electronics that can be fried by strong geomagnetic currents.
If enough repeaters fail, entire transcontinental routes could be cut off. That means you might still access some local websites, but anything hosted overseas? Gone. And because the internet is so interconnected, regional outages can quickly snowball into a global breakdown.
And it’s not just the cables — satellites are also at risk. A bad solar storm can interfere with GPS, disrupt communication links, and even push satellites out of orbit due to increased atmospheric drag.

Has This Happened Before?

Yes — but in less connected times. The most famous example is the Carrington Event of 1859. It was so powerful that telegraph systems across Europe and North America failed, sparks flew from equipment, and operators reported being able to send messages even with the power disconnected. Imagine that level of chaos in today’s tech-driven world.
A smaller example happened in March 1989, when a geomagnetic storm knocked out the entire Quebec power grid for nine hours. And in 2003, the “Halloween Storms” damaged satellites and disrupted airline navigation.

What Would Happen If It Hit Today?

Researchers at the University of California, Irvine, have estimated that a storm on the scale of the Carrington Event could cause internet outages lasting weeks or even months in some areas, with economic damages exceeding $10 trillion.
Global banking systems, air traffic control, emergency communications — all of them could be severely disrupted. It wouldn’t just be a tech problem; it would ripple through supply chains, healthcare, and everyday life.

Can We Prepare for It?

The good news? We’re not totally helpless. Space-weather monitoring satellites like SOHO (Solar and Heliospheric Observatory) and SDO (Solar Dynamics Observatory) give scientists early warnings of incoming CMEs, sometimes hours or days in advance.
Governments and internet infrastructure providers could use this time to power down vulnerable equipment, reroute data, or switch to backup systems. But honestly, the time window is tight — and the costs of preparation are huge.
For regular folks like us, the best we can do is:
- Back up important files on external drives (not just in the cloud).
- Keep a basic emergency kit — flashlight, radio, spare batteries, some cash.
- Print out essential contacts and information.
- Learn to manage without internet for a while — even if it’s just a “digital detox” practice run.

Final Thought

Solar storms aren’t an everyday worry, but they’re a reminder that our high-tech world depends on forces we can’t fully control. The Sun has been throwing solar tantrums for billions of years — our fragile internet? Barely a few decades old.
So, next time you see news about an upcoming solar flare, remember: it’s not just an astronomy headline. It’s a reminder of how connected — and vulnerable — our modern world really is.