Dust from a comet that won't return for decades is lighting up tonight
Tonight, Earth passes through the ancient debris trail of Halley's Comet, a path worn into the solar system over millennia of celestial wandering. From the darkness before dawn on May 6th, those willing to look up may witness up to fifty meteors per hour burning across the sky — each one a fragment of cosmic history igniting at 150,000 miles per hour. It is a reminder that even in stillness, we are always moving through something vast.
- Halley's Comet may be decades away, but its dust is here tonight — and Earth is flying straight through it at full orbital speed.
- The window is narrow: peak activity falls in the hours just before dawn on May 6th, making this a race against sunrise for UK observers.
- Up to fifty meteors per hour could streak across the sky, each one a particle burning up in an instant after traveling billions of miles.
- Light pollution is the enemy — astronomers urge people to leave city centres and find genuine darkness to unlock the full display.
- Twenty minutes of patience in the dark is all it takes for human eyes to adapt and begin catching what the sky is offering.
Tonight, Earth is moving through a trail of dust left behind by Halley's Comet, and that dust is about to light up the sky. The Eta Aquariids meteor shower peaks on the night of May 5th into the early hours of May 6th, offering as many as fifty shooting stars per hour.
Halley's Comet swings past Earth roughly every seventy-six years, but its debris lingers along its orbital path long after it has gone. Twice a year, Earth's own orbit carries us through this material — producing the Eta Aquariids in May and the Orionids in October. The meteoroids arrive at around 150,000 miles per hour, burning up almost instantly in brilliant streaks across the atmosphere.
For observers in the UK, the best chance comes in the hours just before dawn, when the radiant point in the constellation Aquarius rises high enough to make the meteors easier to spot. Astronomer Anna Ross of the Royal Observatory Greenwich advises finding a location well away from artificial light, allowing twenty minutes for your eyes to adjust, and lying down to comfortably scan the full sky overhead.
The shower has been active since late April and runs until the end of May, but tonight represents the peak. Patience, darkness, and a clear view upward are all that's needed.
Tonight, if you step outside and look up, you might catch something most people miss: the Earth is moving through a trail of cosmic dust, and that dust is about to light up the sky. The Eta Aquariids meteor shower reaches its peak on the night of May 5th into the early hours of May 6th, with as many as fifty shooting stars streaking across the darkness each hour. It's a celestial event that happens because of where we are in our orbit around the sun—specifically, because our path intersects with the debris field left behind by Halley's Comet.
Halley's Comet itself is a visitor that swings past Earth roughly once every seventy-six years, tracing an elliptical path through the solar system. But even when the comet itself is nowhere near us, its dust remains, scattered along the orbital route it has traveled for millennia. Twice a year, Earth's own elliptical orbit carries us directly through this debris. In May, we get the Eta Aquariids. In October, the same comet's dust produces the Orionids meteor shower. The name Eta Aquariids comes from the constellation Aquarius in the southern hemisphere, the region of sky from which these meteors appear to originate.
What makes this display so dramatic is the sheer velocity involved. These meteoroids are traveling at roughly 150,000 miles per hour when they collide with Earth's atmosphere. At that speed, friction ignites them almost instantly, and they burn up in brilliant streaks visible from the ground. The shower has been active since late April and will continue through the end of May, but tonight and into tomorrow morning represent the window of maximum activity.
Anna Ross, an astronomer at the Royal Observatory in Greenwich, explained the mechanics to the PA news agency and offered practical advice for anyone hoping to witness the display. The challenge for observers in the UK is that the radiant point—the region of sky where the meteors appear to originate and where they're easiest to spot—only rises in the early morning hours. This means the best viewing window isn't midnight or early evening, but rather the hours just before dawn on May 6th.
To actually see the meteors, Ross recommends traveling to a location far from artificial light pollution. A moonlit night is acceptable, but darkness is crucial. Once you've found your spot, allow about twenty minutes for your eyes to adjust to the darkness; this adaptation period is essential for seeing fainter meteors. She also suggests lying down rather than standing, since you'll be looking upward for an extended period and comfort matters when you're waiting for the sky to perform.
The shower remains visible throughout the night and into the morning, but those willing to wake early or stay up late will have the best chance of seeing the full display. The meteoroids will be visible from all over the sky, not just from the radiant point, so there's no need to stare in one direction. The key is patience, darkness, and a clear view overhead.
Notable Quotes
The meteor shower is visible from April 19 until May 28, with the best night being May 5-6 when up to 50 meteors per hour will be visible.— Anna Ross, astronomer at the Royal Observatory in Greenwich
Find a dark area of clear sky and allow around 20 minutes to let your eyes adapt to the dark. It may also be advisable to lie down as you may be looking up for a long time.— Anna Ross, Royal Observatory in Greenwich
The Hearth Conversation Another angle on the story
Why does Halley's Comet create two different meteor showers each year if it only visits every seventy-six years?
Because the comet leaves a trail of dust behind it as it orbits. Earth crosses that same orbital path twice a year—once in May, once in October—so we pass through the debris field twice even though the comet itself is far away.
So tonight's meteors are actually fragments from Halley's Comet?
Yes, but fragments that have been scattered along its orbital path for centuries. They're not fresh debris—they're ancient dust that's been traveling through space for a very long time.
Why is the UK viewing window so tricky compared to other places?
The radiant point—where the meteors appear to originate—only rises above the horizon in the early morning hours here. In other parts of the world, it might be higher in the sky at more convenient times. We have to wake up early or stay up very late to see them at their best.
What happens to these meteoroids when they hit the atmosphere?
They're traveling at 150,000 miles per hour, so the friction with the air heats them instantly. They burn up completely, and that burning is what we see as a shooting star. It's a brief, brilliant flash.
Does light pollution really make that much difference?
Absolutely. Your eyes need about twenty minutes to adjust to darkness, and that adjustment is what lets you see the fainter meteors. Streetlights and other artificial light prevent that adaptation, so you'll miss most of the display.
Is there a best time to look, or should I just go outside and watch all night?
Dawn on May 6th is genuinely the best window in the UK. But the shower is active all night, so if you can't wake early, any dark hour will show you something.