The Sun threw a tantrum, and Earth might get a light show for it
On May 10, the Sun released a coronal mass ejection — a vast cloud of magnetised plasma now drifting toward Earth — and by May 13 it may graze our magnetosphere enough to paint the night sky with the Northern Lights. This is no isolated event but a sign of the times: 2026 sits near the peak of the Sun's 11-year cycle, a period when our star grows restless and the boundary between the cosmos and our everyday lives grows briefly, beautifully thin. Whether the display reaches southern Britain depends not only on the storm's intensity but on whether the clouds — that most English of obstacles — choose to part.
- A violent solar eruption on May 10 sent billions of tons of plasma hurtling toward Earth, with the leading edge expected to arrive as early as May 13.
- The ejection is rotating into the Sun's 'strike zone,' meaning any further flares in the coming days could be aimed directly at Earth, compounding the geomagnetic pressure.
- The Met Office is monitoring conditions for a minor geomagnetic storm that could push the aurora oval southward, potentially making the Northern Lights visible across the entire UK — not just Scotland.
- Cloud cover and unsettled Atlantic weather threaten to obscure the display for many, turning the week into a race between solar spectacle and British skies.
- With 2026 marking a solar cycle peak, this event is one of many expected this year — the March displays were a preview, and more opportunities lie ahead for those patient enough to watch.
The Sun erupted on the afternoon of May 10, releasing a coronal mass ejection — a violent discharge of plasma and magnetic field — that is now drifting toward Earth. By May 13, a portion of that solar material could brush past our planet, potentially triggering minor geomagnetic storm conditions and setting the Northern Lights dancing across British skies.
Coronal mass ejections are among the Sun's most dramatic outbursts. When aimed at Earth, they disturb the magnetosphere and push the aurora oval far beyond its usual high-latitude haunts. The ejection is currently rotating into what scientists call Earth's strike zone, meaning any further solar activity in the coming days could be directed straight at us. Earlier this year, during the vivid displays of March 23 and 24, people across the UK — including in the south — caught glimpses of the lights. This week could offer another such moment.
The science behind auroras is quietly beautiful: charged particles from the solar wind collide with oxygen and nitrogen in the upper atmosphere, exciting atoms that release energy as coloured light. Oxygen yields greens and reds; nitrogen produces blues and purples. During stronger storms, these collisions occur at lower altitudes and across a wider area, making the display accessible to millions who would otherwise never see it.
2026 is a peak year in the Sun's 11-year cycle, meaning eruptions are more frequent and aurora opportunities more plentiful. But the week ahead brings the usual Atlantic complication — changeable skies, passing showers, and persistent cloud cover that could obscure the view entirely. The Sun has done its part. Whether the clouds cooperate is, as ever in Britain, another matter.
The Sun threw a tantrum on Sunday afternoon, and Earth might get a light show for it. At 1:13 p.m. on May 10, a coronal mass ejection erupted from the Sun's corona—a violent discharge of plasma and magnetic field that can hurl billions of tons of solar material into space. Now that expanding cloud is rotating into position, and the Met Office is watching closely. By today, May 13, a portion of that ejected material could brush past Earth, potentially triggering minor geomagnetic storm conditions that would paint the night sky with the Northern Lights.
Coronal mass ejections are among the Sun's most dramatic tantrums. The eruption that occurred Sunday released not just matter but a powerful magnetic field, the kind of thing that, when aimed at Earth, can scramble our planet's magnetosphere and set off auroras visible far beyond their usual haunts. The timing matters: the ejection is now rotating into what scientists call Earth's "strike zone" on the Sun's northeastern edge. Over the coming days, as this region continues to face our way, any new solar flares or CMEs will have a much better chance of being directed straight at us.
For most of the year, the Northern Lights are a Scottish affair—a phenomenon best seen in high-latitude regions, appearing a few times annually during periods of solar activity. But when geomagnetic storms intensify, the aurora oval expands southward. During the vivid displays of March 23 and 24 this year, people across the UK, even in the south, caught glimpses of the dancing lights. This week could bring another such opportunity, though the Met Office's forecast suggests conditions will be changeable and wet, which means cloud cover could spoil the view for many.
The mechanism behind auroras is elegant: charged particles streaming from the Sun's atmosphere—the solar wind—collide with gases in Earth's upper atmosphere. These impacts excite oxygen and nitrogen atoms, which then release energy as light. The colors depend on which gas is struck and at what altitude: oxygen typically produces greens and reds, nitrogen creates blues and purples. When a geomagnetic storm is underway, these collisions happen at lower altitudes and across a wider area, making the display visible from places that normally never see them.
2026 is turning out to be a banner year for solar activity. The Sun is near the peak of its 11-year cycle, meaning more frequent eruptions and more opportunities for aurora watchers. The March displays were just the beginning. This week's potential storm would be another chance, though success will depend on clear skies—a commodity in short supply across the UK in mid-May. The forecast from May 15 through May 24 calls for the typical Atlantic influence: sunny breaks interrupted by passing showers, temperatures hovering near seasonal norms, and a persistent northwesterly wind. It's the kind of week that keeps an umbrella within arm's reach.
Looking further ahead, there's a glimmer of hope. From May 25 into early June, the Met Office suggests conditions may begin to stabilize, with longer dry spells becoming more likely and pressure systems shifting to favor drier weather, at least toward the southwest. For now, though, anyone hoping to witness the Northern Lights this week should keep one eye on the aurora forecast and the other on the weather radar. The Sun has done its part. Whether the clouds cooperate is another matter entirely.
Notable Quotes
The Met Office indicates that part of the expanding cloud of solar material could skim past Earth on May 13, potentially triggering minor geomagnetic storm conditions— Met Office aurora forecast
The Hearth Conversation Another angle on the story
So the Sun threw a coronal mass ejection at us on May 10—why does that matter now, nearly three days later?
Because space is vast, but not infinitely so. That ejected material is traveling through the solar wind, and a chunk of it is expected to reach Earth's magnetosphere today. When it arrives, it's like throwing a magnetic wrench into our planet's electromagnetic field.
And that creates the Northern Lights? I thought they were just a natural phenomenon that happened on their own.
They do happen naturally, but geomagnetic storms amplify them dramatically. Normally the aurora is confined to high latitudes—Scotland, Scandinavia, Alaska. A strong storm expands that oval southward, which is why people in southern England might see them this week if the clouds clear.
You mentioned clouds. That seems like a cruel detail.
It is. The Met Office is forecasting changeable conditions with frequent showers through mid-May. You could have the perfect geomagnetic conditions and still see nothing but gray sky. It's the kind of timing that tests patience.
Is this a rare event?
Not anymore. 2026 is a peak year in the solar cycle, so we'll see more of these opportunities. March had vivid displays. This could be another. But the real rarity is having both the solar activity and clear skies align—that's what people are hoping for.
What happens if we miss it this week?
The cycle continues. More chances will come. But there's always that element of luck involved—you have to be in the right place at the right time with clear skies overhead.