Traces of earliest stars found?

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Illingworth, a professor of astronomy at the University of California, Santa Cruz, and the principal investigator for the Hubble Ultra Deep Field project, also expressed skepticism about the team's conclusions, stating that the measurement could be a result of "incompletely subtracted residuals"In summary, there is a report about a team's conclusion that they have measured the signal of ancient stars. However, some experts, including Ned Wright and Garth Illingworth, express doubt about the validity and accuracy of this conclusion due to imprecise methods and potentially incomplete subtraction of radiation from nearby sources. It is advised to approach this finding with caution.
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vincentm
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http://www.billingsgazette.com/index.php?display=rednews/2005/11/03/build/nation/96-nasa.inc
 
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From that report as New Wright said
Ned Wright, an astronomy professor at UCLA, was more doubtful. He argued that the process of removing the radiation contribution of other stars is too imprecise to make the team's conclusions valid, and that the measurement it saw is not the signal of ancient stars.

"I'm very skeptical of this result. I think it's wrong," he said. "I think what they're seeing is incompletely subtracted residuals from nearby sources."

Very exciting but it would be wise to be cautious.

Garth
 

1. How were the traces of the earliest stars found?

The traces of the earliest stars were found using a combination of observational and theoretical methods. Observations from telescopes on the ground and in space allowed scientists to detect the faint light from these ancient stars, while theoretical models helped to confirm their age and characteristics.

2. What do the traces of the earliest stars tell us about the early universe?

The traces of the earliest stars provide valuable insights into the conditions of the early universe. They tell us about the composition of the universe at that time, as well as the processes involved in the formation of stars and galaxies. They also help us understand the evolution of the universe over time.

3. How old are the earliest stars?

The earliest stars are estimated to be around 13.6 billion years old, which is close to the age of the universe itself. This makes them some of the oldest objects in the universe and studying them can give us a better understanding of the early stages of cosmic evolution.

4. How were the earliest stars different from stars today?

The earliest stars were likely much larger and more massive than stars today. They were also made almost entirely of hydrogen and helium, with very little of the heavier elements that are present in stars today. These differences in composition and size can tell us about the conditions and processes that existed in the early universe.

5. What implications do the traces of the earliest stars have for our understanding of the universe?

The traces of the earliest stars have significant implications for our understanding of the universe. They provide evidence for the Big Bang theory and support our current understanding of how the universe evolved. They also help us to fill in the gaps in our knowledge of the early universe and shed light on some of the most fundamental questions about our existence.

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