
When you buy through links on our articles, Future and its syndication partners may earn a commission.
Comet C/2025 A6, better known as Comet Lemmon, was one of the latest icy visitors to swing through our neighborhood of the solar system, leaving astronomers and casual skywatchers equally delighted. For observers in Hawaii, the glow of the Milky Way didn't dim the streak of light made by this comet passing through.
What is it?
Comet Lemmon was discovered in January 2025 and made its closest approach to Earth in late October 2025. But by November 2025, when this image was taken, it had brightened to about the same apparent brightness as the planet Uranus, making it visible to the naked eye even from suburban skies.
Where is it?
This image was taken atop the volcanic peak Mauna Kea, on the Big Island of Hawaii.
Why is it amazing?
Comets are notoriously unpredictable, so Comet Lemmon's surprising visibility has felt like a bit of a cosmic bonus for Hawaiian stargazers. And this was a rare treat, as the comet won't return to Earth's skies for another 1,350 years, around the year 3375.
Framing this comet is the glow of our home galaxy, the Milky Way, which is easier to spot at higher elevations like Mauna Kea's peak, where there is less light pollution. The image gives us a souvenir from a celestial visitor that won't be back for more than a millennium.
Want to learn more?
You can learn more about comets and skywatching.
LATEST POSTS
- 1
Artemis II crew take new photo of far side of the moon - 2
If evolution is real, then why isn’t it happening now? An anthropologist explains that humans actually are still evolving - 3
5 Movies That Leaving an Imprint with Inventive Innovation - 4
SF Chinatown's historic Empress of China building being revived into cultural campus - 5
Best Veggie lover Dinner: What's Your Plant-Based Pick?
Bruno Mars tour 2026: How to get tickets for 'The Romantic Tour,' presale times, prices and more
'Something Very Bad Is Going to Happen' is the Duffer Brothers' first project since 'Stranger Things.' It's also 'wildly insane.'
Father and son spending Christmas together after health scares
Protester climbs on to balcony of Iranian embassy in London
What to watch for in weight loss drugs in 2026
What's inside Mexico's Popocatépetl? Scientists obtain first 3D images of the whole volcano
Vote In favor of Your Favored Keeping an eye on
6 Solid Moving Administrations for a Calm Movement
MEPs urge Commission leaders to stop Russia from returning to the Venice Biennale













