Webb Telescope Observes Most Distant Black Hole
2023-07-17
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1Astronomers say they have identified the most distant, active supermassive black hole ever observed.
2The observation came from data collected by the James Webb Space Telescope, which the American space agency NASA operates.
3Researchers said the newly discovered black hole is at the center of a galaxy called CEERS 1019.
4The galaxy is estimated to have existed about 570 million years after the Big Bang.
5The Big Bang is the explosion many scientists believe created the universe.
6Scientists estimate the Big Bang happened around 14 billion years ago and was followed by a period of intense development across the universe.
7Steven Finkelstein is an astronomer at the University of Texas at Austin who helped lead the research.
8He told The Associated Press that Webb has already observed other black holes that appear to be even closer to the Big Bang.
9But those findings are still being studied.
10The latest study results have been accepted for publication in the Astrophysical Journal Letters.
11The black hole was observed in February by imaging and data instruments built into the Webb.
12Researchers say it is on the smaller side, about 9 million times the mass of our sun.
13That is smaller than any black hole yet identified in the early universe, the team said.
14Researchers say signals from the observed black hole are weak so more observations will be needed to confirm the findings.
15Finkelstein said there are numerous non-active black holes, some of which are even more distant than the one observed.
16But without any observable gas, they cannot be identified.
17The team also used the Webb to study two other small black holes from the early universe.
18These objects dated back to around 1 billion years after the Big Bang.
19The observations suggest these smaller black holes may have been more common as the universe began to develop.
20"There are probably many more hidden little monsters out there waiting to be found," said Dale Kocevski.
21He was part of the research team, representing Colby College in Maine.
22Launched in late 2021, NASA's Webb is the largest, most powerful telescope ever sent into space.
23Its first images and science results were released by NASA about one year ago.
24The Webb is a large infrared telescope designed to gather more in-depth data and explore parts of space never observed before.
25The device collects infrared waves --electromagnetic energy that cannot be seen with the human eye.
26Infrared waves pass through gas and dust that can hide objects in space.
27The infrared system can also show light from more distant parts of the universe.
28NASA recently celebrated the Webb's one-year anniversary by releasing a new image observed by the telescope.
29The image shows 50 baby stars in a cloud collection about 390 light-years from Earth. A light-year is 9.7 trillion kilometers.
30The image shows an area of space that is full of bright hydrogen gases and dense collections of dust.
31All the young stars appear to be no bigger than our sun.
32Scientists said it is a good image of this brief period in a star's life.
33NASA program scientist Eric Smith told the AP about the image:
34"It's like a glimpse of what our own system would have looked like billions of years ago when it was forming."
35I'm Bryan Lynn.
1Astronomers say they have identified the most distant, active supermassive black hole ever observed. 2The observation came from data collected by the James Webb Space Telescope, which the American space agency NASA operates. 3Researchers said the newly discovered black hole is at the center of a galaxy called CEERS 1019. The galaxy is estimated to have existed about 570 million years after the Big Bang. The Big Bang is the explosion many scientists believe created the universe. Scientists estimate the Big Bang happened around 14 billion years ago and was followed by a period of intense development across the universe. 4Steven Finkelstein is an astronomer at the University of Texas at Austin who helped lead the research. He told The Associated Press that Webb has already observed other black holes that appear to be even closer to the Big Bang. But those findings are still being studied. The latest study results have been accepted for publication in the Astrophysical Journal Letters. 5The black hole was observed in February by imaging and data instruments built into the Webb. Researchers say it is on the smaller side, about 9 million times the mass of our sun. That is smaller than any black hole yet identified in the early universe, the team said. 6Researchers say signals from the observed black hole are weak so more observations will be needed to confirm the findings. 7Finkelstein said there are numerous non-active black holes, some of which are even more distant than the one observed. But without any observable gas, they cannot be identified. 8The team also used the Webb to study two other small black holes from the early universe. These objects dated back to around 1 billion years after the Big Bang. The observations suggest these smaller black holes may have been more common as the universe began to develop. 9"There are probably many more hidden little monsters out there waiting to be found," said Dale Kocevski. He was part of the research team, representing Colby College in Maine. 10Launched in late 2021, NASA's Webb is the largest, most powerful telescope ever sent into space. Its first images and science results were released by NASA about one year ago. 11The Webb is a large infrared telescope designed to gather more in-depth data and explore parts of space never observed before. The device collects infrared waves --electromagnetic energy that cannot be seen with the human eye. Infrared waves pass through gas and dust that can hide objects in space. The infrared system can also show light from more distant parts of the universe. 12NASA recently celebrated the Webb's one-year anniversary by releasing a new image observed by the telescope. The image shows 50 baby stars in a cloud collection about 390 light-years from Earth. A light-year is 9.7 trillion kilometers. 13The image shows an area of space that is full of bright hydrogen gases and dense collections of dust. All the young stars appear to be no bigger than our sun. Scientists said it is a good image of this brief period in a star's life. 14NASA program scientist Eric Smith told the AP about the image: "It's like a glimpse of what our own system would have looked like billions of years ago when it was forming." 15I'm Bryan Lynn. 16The Associated Press, the University of Texas at Austin and NASA reported on this story. Bryan Lynn adapted the reports for VOA Learning English. 17__________________________________________________________________ 18Words in This Story 19supermassive - adj. used to describe something that has an extremely large mass 20monster -n. a horrible imaginary creature 21glimpse - n. to see something or someone for a very brief moment 22______________________________________________________________________ 23What do you think of this story? We want to hear from you. We have a new comment system. Here is how it works: 24Each time you return to comment on the Learning English site, you can use your account and see your comments and replies to them. Our comment policy is here.