NASA's James Webb Space Telescope Spots Enigmatic Object That Could Be Universe's Earliest Galaxy
Astronomers at NASA's James Webb Space Telescope (JWST) have discovered a puzzling object that could be the earliest known galaxy in the universe. The object, named Capotauro, was detected by JWST's Near Infrared Camera (NIRCam) and Near Infrared Spectrograph (NIRSpec) instruments during the Cosmic Evolution Early Release Science (CEERS) survey.
The team, led by astrophysicist Giovanni Gandolfi, spotted Capotauro in March during a previous study, but the lack of fine-grained data made it impossible to determine its identity. With more recent data from JWST, they were able to narrow down their options and test several possible scenarios.
One possibility is that Capotauro could be an ancient galaxy that formed just 100 million years after the Big Bang, pushing back the age of the oldest known galaxy by around 200 million years. In this scenario, Capotauro was estimated to be a massive giant with over a billion solar masses.
However, another possibility suggests that Capotauro is actually a very unusual brown dwarf - a "failed star" - living on the outer edges of the Milky Way galaxy, smoldering at just 80 degrees Fahrenheit (27 degrees Celsius). If this interpretation is correct, it would be the coldest and farthest known brown dwarf in our galaxy.
According to Gandolfi, both possibilities are exciting because they would challenge scientists' current understanding of their own galaxy and how galaxies form and evolve. The team has submitted a request for JWST to gather more data on Capotauro to pinpoint its exact properties and is also scanning other areas of the universe for similar-looking objects.
Muhammad Latif, an astrophysicist at United Arab Emirates University who was not involved in the research, described Capotauro as one of the most puzzling discoveries from JWST to date. "It's a very intriguing object that basically pushes our knowledge to the edge," he said.
The exact identity and properties of Capotauro remain uncertain, but its discovery has sparked excitement among scientists about the possibility of uncovering new insights into the formation and evolution of galaxies in the early universe.
Astronomers at NASA's James Webb Space Telescope (JWST) have discovered a puzzling object that could be the earliest known galaxy in the universe. The object, named Capotauro, was detected by JWST's Near Infrared Camera (NIRCam) and Near Infrared Spectrograph (NIRSpec) instruments during the Cosmic Evolution Early Release Science (CEERS) survey.
The team, led by astrophysicist Giovanni Gandolfi, spotted Capotauro in March during a previous study, but the lack of fine-grained data made it impossible to determine its identity. With more recent data from JWST, they were able to narrow down their options and test several possible scenarios.
One possibility is that Capotauro could be an ancient galaxy that formed just 100 million years after the Big Bang, pushing back the age of the oldest known galaxy by around 200 million years. In this scenario, Capotauro was estimated to be a massive giant with over a billion solar masses.
However, another possibility suggests that Capotauro is actually a very unusual brown dwarf - a "failed star" - living on the outer edges of the Milky Way galaxy, smoldering at just 80 degrees Fahrenheit (27 degrees Celsius). If this interpretation is correct, it would be the coldest and farthest known brown dwarf in our galaxy.
According to Gandolfi, both possibilities are exciting because they would challenge scientists' current understanding of their own galaxy and how galaxies form and evolve. The team has submitted a request for JWST to gather more data on Capotauro to pinpoint its exact properties and is also scanning other areas of the universe for similar-looking objects.
Muhammad Latif, an astrophysicist at United Arab Emirates University who was not involved in the research, described Capotauro as one of the most puzzling discoveries from JWST to date. "It's a very intriguing object that basically pushes our knowledge to the edge," he said.
The exact identity and properties of Capotauro remain uncertain, but its discovery has sparked excitement among scientists about the possibility of uncovering new insights into the formation and evolution of galaxies in the early universe.