Most meteorites that reach Earth’s surface are small fragments, but a handful of iron-rich masses have survived atmospheric entry largely intact, some weighing tens of tonnes. These giants are almost all composed primarily of iron and nickel, which is far more resistant to atmospheric breakup and terrestrial weathering than the stonier meteorites that make up the majority of falls, letting them persist on the surface for thousands of years without fully rusting away. The eight meteorites below rank among the largest ever found.
1. Hoba meteorite
The Hoba meteorite, discovered on a farm in Namibia in 1920, is the largest known meteorite on Earth, estimated to weigh around 60 tonnes, and it is also believed to be the largest naturally occurring piece of iron known to exist on the planet’s surface. Because of its enormous mass, it has never been moved from the spot where it was found and now sits at the center of a small national monument. The Hoba meteorite’s flat, tabular shape is thought to have helped it survive atmospheric entry without breaking apart. Visitors can still walk up and touch its exposed surface at the site today, one of the few places on Earth where the public can touch a meteorite of this scale.
2. Cape York meteorite
The Cape York meteorite fell in Greenland in prehistoric times and was found broken into several massive fragments, the largest of which, nicknamed Ahnighito, weighs more than 30 tonnes on its own. Indigenous Inuit communities used pieces of the iron for tools for centuries before explorer Robert Peary had the largest fragments transported to New York in the late nineteenth century. The Cape York meteorite’s combined fragments rank among the most massive meteorite material ever recovered from a single fall, and several fragments remain on public display today.
3. Campo del Cielo
Campo del Cielo is a strewn field in Argentina containing numerous large iron meteorite fragments scattered across an area created by a meteor that broke apart before impact thousands of years ago. Its largest recovered pieces, including one nicknamed Gancedo, each weigh more than 30 tonnes, making the field one of the richest sources of large meteorite material anywhere in the world and a long-running destination for meteorite researchers. The Campo del Cielo strewn field continues to yield new fragments as excavation and research in the area continues, with some pieces still being unearthed by farmers working the surrounding land.
4. Bacubirito meteorite
The Bacubirito meteorite, found in the Mexican state of Sinaloa in the late nineteenth century, is estimated to weigh more than 20 tonnes, making it one of the largest single meteorites ever recovered in North America. Its elongated, torpedo-like shape has made it a distinctive museum centerpiece ever since it was carefully moved to a planetarium in Culiacán. The Bacubirito meteorite’s composition, like most of the largest meteorites on this list, is predominantly iron, a composition that helped it withstand both the fall and centuries of exposure since.
5. Mbozi meteorite
The Mbozi meteorite, discovered in Tanzania, weighs an estimated 16 tonnes and rests on the surface with no surrounding impact crater, a puzzle that has led researchers to conclude it likely struck at a relatively shallow angle or low velocity. It has long held cultural and spiritual significance for communities in the surrounding region. The Mbozi meteorite’s lack of a crater sets it apart from many other large meteorite finds, which are typically associated with visible impact features. Researchers continue to study the site to better understand how it landed so gently.
6. Willamette Meteorite
The Willamette Meteorite, found in Oregon and weighing roughly 15.5 tonnes, is the largest meteorite ever discovered in the United States and holds deep spiritual significance for the Clackamas people, who called it Tomanowos and considered it a sacred healer. Its ownership became the subject of a legal dispute between the discoverer, a mining company, and the Confederated Tribes of Grand Ronde, ultimately resolved through a formal agreement allowing continued tribal access and ceremonial use of the specimen each year. The Willamette Meteorite is now displayed at the American Museum of Natural History in New York.
7. Gibeon meteorite
The Gibeon meteorite fell as a massive shower of fragments across a wide area of Namibia in prehistoric times, and its individual pieces have become famous among collectors for the sharply defined Widmanstätten pattern visible when the iron is cut and etched, a crystalline structure that forms only through extremely slow cooling in a parent asteroid over millions of years. The Nama people historically used fragments of the iron to make tools and weapons long before its scientific significance was understood. The Gibeon meteorite has since become an unofficial national symbol of Namibia, appearing on its coat of arms.
8. Chinga meteorite
The Chinga meteorite fell as a shower of fragments across a remote region of Tuva in southern Siberia, scattering pieces across an area difficult to access and only thoroughly explored decades after the fall. Classified as an ataxite, an unusually nickel-rich type of iron meteorite, its fragments have been prized by researchers studying the internal structure of asteroid cores, offering clues about how planetary bodies formed and cooled billions of years ago. The Chinga meteorite’s remote scattering field has made systematic recovery an ongoing, decades-long effort for meteorite hunters and scientists alike.
This article was produced with the assistance of AI and reviewed by Morning Overview editors.
More from Morning Overview
