WASHINGTON, Jan 19 (Reuters) – The Ring Nebula, a stunning celestial structure residing in our neighborhood of the Milky Way galaxy, was discovered by French astronomer Charles Messier in 1779 and has been studied extensively ever since. But that does not mean we have it all figured out.Researchers have spotted a large cloud of iron atoms in the shape of a bar stretching about 3.7 trillion miles (6 trillion km) long across the face of the nebula, which is a glowing shell of gas and dust expelled by a dying star, and are searching for an explanation.They said it is possible the iron atoms, collectively comparable to the mass of Earth’s molten iron core, are the remnants of a rocky planet that was vaporized when the star threw off its outer layers, though they cautioned that such an explanation is mere conjecture at the moment. The inner rocky planets of our solar system, potentially even Earth, could face the same fate when the sun goes through these same death throes billions of years from now.AdvertisementAdvertisementAdvertisementAdvertisementThe researchers made the observation using a new instrument called WEAVE, short for WHT Enhanced Area Velocity Explorer, on the William Herschel Telescope, located on the Atlantic Ocean island of La Palma in Spain’s Canary Islands.”It is exciting to see that even a very familiar object – much studied over many decades – can throw up a new surprise when observed in a new way,” said astronomer Roger Wesson of Cardiff University in Wales and University College London, lead author of the research published in the journal Monthly Notices of the Royal Astronomical Society.”It’s a classic object for professional and amateur astronomers alike to observe,” Wesson said. “Although it’s too faint to see with the naked eye, it’s quite easy to spot with binoculars. In a small telescope, you can see the ring-like app …
