06-25-2021, 02:55 AM
When did the first stars in the universe shine?
The Universe came into being 13.8 billion years ago in the Big Bang. After an initial flash, it went through a period known as the cosmic dark ages. According to the new study, 250 to 350 million years after the Big Bang, the first stars emerged, bringing light to the cosmos.
The team needed 70 hours of observing time, using four of the largest ground-based telescopes to estimate their distances. These were the Atacama Large Millimetre Array (Alma), the Very Large Telescope (VLT) and the Gemini South Telescope - all located in Chile - as well as the twin Keck telescopes in Hawaii.
https://www.bbc.co.uk/news/science-environment-57515422
When the James Webb Space Telescope launches later this year, it may see that first light.
The Universe came into being 13.8 billion years ago in the Big Bang. After an initial flash, it went through a period known as the cosmic dark ages. According to the new study, 250 to 350 million years after the Big Bang, the first stars emerged, bringing light to the cosmos.
The team needed 70 hours of observing time, using four of the largest ground-based telescopes to estimate their distances. These were the Atacama Large Millimetre Array (Alma), the Very Large Telescope (VLT) and the Gemini South Telescope - all located in Chile - as well as the twin Keck telescopes in Hawaii.
https://www.bbc.co.uk/news/science-environment-57515422
When the James Webb Space Telescope launches later this year, it may see that first light.