![\"A](\"https:\/\/www.europesays.com\/ie\/wp-content\/uploads\/2026\/01\/Ring-Nebula-Bar-800x420.jpg\")
Astronomers discovered this iron bar running for 3.7 trillion miles in the middle of the Ring Nebula | Roger Wesson et al. <\/p>\n Astronomers discovered this iron bar running for 3.7 trillion miles in the middle of the Ring Nebula | Roger Wesson et al. <\/p>\n
It\u2019s one of the most eye-catching objects in the Universe, but now astronomers have identified an unexpected structure inside the Ring Nebula. <\/p>\n
A new imaging instrument mounted in Spain\u2019s Canary Islands called WEAVE (the WHT Enhanced Area Velocity Explorer) has found a bar-shaped cloud of iron atoms stretching across the nebula\u2019s interior.<\/p>\n
The Ring Nebula, also known as Messier 57, lies in the constellation Lyra roughly 2,600 light-years from Earth. Discovered by French astronomer Charles Messier in 1779, it is one of the best-known planetary nebulae and has been spectacularly imaged by Hubble and James Webb space telescopes<\/a>.<\/p>\n The nebula formed when a star about twice the Sun\u2019s mass exhausted the nuclear fuel in its core, expanded into a red giant, and expelled its outer layers. What remains is a compact white dwarf roughly the size of Earth, surrounded by a glowing shell of gas composed mostly of hydrogen and helium. The nebula is estimated to be about 4,000 years old, which is recent by cosmic standards.<\/p>\n The newly detected iron structure is unusual. The bar of iron atoms extends about 3.7 trillion miles (6 trillion kilometers) across the face of the nebula and contains a quantity of iron comparable to the mass of Earth\u2019s molten iron core. Observations show that no other detected chemical element appears concentrated in the same bar-like feature.<\/p>\n \u201cIt is exciting to see that even a very familiar object \u2014 much studied over many decades \u2014 can throw up a new surprise when observed in a new way,\u201d astronomer Roger Wesson of Cardiff University and University College London, lead author of the research published in Monthly Notices of the Royal Astronomical Society, tells Reuters<\/a>. <\/p>\n \u201cIt\u2019s a classic object for professional and amateur astronomers alike to observe. Although it\u2019s too faint to see with the naked eye, it\u2019s quite easy to spot with binoculars. In a small telescope, you can see the ring-like appearance.\u201d<\/p>\n When processing the WEAVE data, researchers were able to examine the nebula\u2019s spectrum across its entire structure, allowing them to map chemical composition in detail. That process revealed the iron feature.<\/p>\n![\"The](\"https:\/\/www.europesays.com\/ie\/wp-content\/uploads\/2026\/01\/Ring-Nebula-800x450.jpeg\")
The Ring Nebula as seen by the James Webb Space Telescope | NASA\/ESA\/CSA <\/p>\n