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Astronomers detect signal from the first stars


Posted on Wednesday, 28 February, 2018 | Comment icon 5 comments

The first stars appeared 180 million years ago. Image Credit: National Science Foundation
A table-sized antenna has picked up the fingerprints of the first ever stars to emerge after the Big Bang.
Described as 'revolutionary', the findings indicate that the first stars emerged around 180 million years after the Big Bang during a major transition known as the 'cosmic dawn'.

Astronomers have also found new evidence concerning the nature of dark matter in the faint imprint left by the glow of these stars which, if confirmed, could represent another major breakthrough.

"Finding this minuscule signal has opened a new window on the early universe," said Arizona State University's Judd Bowman - an experimental cosmologist whose team made the discovery. "It's unlikely we'll be able to see any earlier into the history of stars in our lifetime."

The key to their success lay in the Edges (Experiment to Detect Global EoR Signature) antenna which is situated in a remote region of Western Australia where there is minimal radio interference.

A more detailed explanation of how the discovery was made can be viewed in the video below.


Source: The Guardian | Comments (5)

Tags: Big Bang, Stars

Recent comments on this story
Comment icon #1 Posted by mackbolin on 1 March, 2018, 2:17
yea right .....pull the other one.
Comment icon #2 Posted by Astra. on 1 March, 2018, 3:19
Err, what does that even mean ? You think that the article is all bull do you ? 
Comment icon #3 Posted by Not A Rockstar on 1 March, 2018, 3:38
Pretty amazing. Hard to get my mind around how very much time has passed.
Comment icon #4 Posted by susieice on 1 March, 2018, 5:30
I just saw this. Scientists say they formed 180 million years after the big bang. This is a pretty good article. They want to work on better radio signals to explore deeper into what they found. https://phys.org/news/2018-02-secrets-universe.html
Comment icon #5 Posted by Not A Rockstar on 1 March, 2018, 7:00
Synchronicity. I had just been thinking last night about suns and wondering how long before they started, or was it like instant as the big bang happened and then find this today :). I would have guessed sooner, so this was interesting to learn a bit more of how they think it was in the very beginning.


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