Scientists detect ‘fingerprint’ of first light ever in the universe
7 years ago

Scientists detect ‘fingerprint’ of first light ever in the universe

CNN  

CNN — Scientists have detected traces of the earliest light in the universe thought to emanate from the first stars formed after the Big Bang, billions of years ago. The new report, published in Nature on February 28, said researchers found the “fingerprint” of the universe’s first light as background radiation left on hydrogen. “This is the first time we’ve seen any signal from this early in the Universe, aside from the afterglow of the Big Bang,” Judd Bowman, an astronomer at Arizona State University who led the work, said in a statement. Following the Big Bang, physicists believe there was only darkness in the universe for about 180 million years, a period known by scientists as Cosmic “Dark Ages.” As the universe expanded, the soup of ionized plasma created by the Big Bang slowly began to cool and form neutral hydrogen atoms, say physicists. Dragonfly Media/CISRO The telescope’s remote location in rural Australia, inside a legislated “radio quiet zone,” kept interference from other human-made devices to a minimum, CSIRO said in a statement.

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History of this topic

Astronomers devise a way to see through the 'fog' of the early universe
2 years, 8 months ago

Astronomers devise a way to see through the 'fog' of the early universe

Daily Mail  

Astronomers have devised a new way to 'see' through the fog of the early universe so they can detect light from the very first stars and galaxies. But while Webb looks at wavelengths in infrared, the Earth-based next-generation SKA telescope – due to be completed by the end of the decade – will study the early universe through radio waves. …

Scientists Find Light From the First Ever Stars Formed Billions of Years Ago in the Universe
3 years, 9 months ago

Scientists Find Light From the First Ever Stars Formed Billions of Years Ago in the Universe

News 18  

Before the beginning of space and time, there was nothing. Interestingly, we can still see the initial starlight from the cosmic dawn that has been travelling to us for billions of years, if we look far enough. So, when we look at faraway objects in space using our powerful telescopes, we are actually looking at the light that was released …

Astronomers detect for first time light coming from the very first stars of our universe
7 years ago

Astronomers detect for first time light coming from the very first stars of our universe

Firstpost  

A team of astronomers including an Indian graduate student Nivedita Mahesh from Arizona State University have discovered for the first time signals from “cosmic dawn” — the moment when the universe’s earliest stars emerged, making a significant breakthrough in our understanding of the evolution of cosmos. When the universe was formed in the Big Bang event 13.8 billion years ago …

Astronomers detect universe's first star, claim it to be more important than Big Bang!
7 years ago

Astronomers detect universe's first star, claim it to be more important than Big Bang!

India Today  

How would the first ever stars in our universe have looked like? Even though it was only a faint signal, detecting the first ever light that came to the universe is even more important than the Big Bang because "we are made of star stuff, and so we are glimpsing at our origin," astronomer Richard Ellis told AP. Hubble finds …

Cosmic Discoveries Fuel a Fight Over the Universe’s Beginnings
7 years, 9 months ago

Cosmic Discoveries Fuel a Fight Over the Universe’s Beginnings

Wired  

Not long after the Big Bang, all went dark. The hydrogen gas that pervaded the early universe would have snuffed out the light of the universe’s first stars and galaxies. Quanta Magazine Original story reprinted with permission from Quanta Magazine, an editorially independent division of the Simons Foundation whose mission is to enhance public understanding of science by covering research …

First Stars Fired Up 140 Million Years Later Than Previously Thought
10 years, 1 month ago

First Stars Fired Up 140 Million Years Later Than Previously Thought

NPR  

First Stars Fired Up 140 Million Years Later Than Previously Thought Enlarge this image toggle caption ESA and the Planck Collaboration ESA and the Planck Collaboration It turns out that the "let there be light" moment in the early universe occurred much later than scientists previously thought, according to a newly published analysis of data collected from the European Space …

First evidence of universe's Big Bang found
11 years ago

First evidence of universe's Big Bang found

India TV News  

In a breakthrough, astronomers have found the first direct evidence of Big Bang by imaging the gravitational waves produced almost 14 billion years ago when the entire universe sprung into existence. The universe we inhabit burst into existence in an extraordinary event that initiated the Big Bang 13.8 billion years ago.In the first fleeting fraction of a second, the universe …

First tremors of Big Bang detected
11 years ago

First tremors of Big Bang detected

The Hindu  

Scientists have heralded a “whole new era” in physics with the detection of “ >primordial gravitational waves ” — the first tremors of the big bang. The primordial gravitational waves were visible because they created a twisting pattern called polarisation in light from the Big Bang. “This is like turning the whole universe into a particle physics experiment,” said Dr …

Universe 80 million years older than previously thought
12 years ago

Universe 80 million years older than previously thought

Live Mint  

Paris: New results from a look into the split second after the Big Bang indicate the universe is 80 million years older than previously thought but the core concepts of the cosmos—how it began, what it’s made of and where it’s going—seem to be on the right track. add_main_imageThe findings released Thursday bolster a key theory called inflation, which says …

Astronomers claim to have spotted earliest galaxy
14 years, 1 month ago

Astronomers claim to have spotted earliest galaxy

The Hindu  

An international team of astronomers say they have glimpsed the earliest galaxy yet, a smudge of light from nearly 13.2 billion years ago — a time when the cosmos was a far lonelier place. Illingworth said originally he and colleagues confused what may have been real light from billions of years ago and background “noise” from the process of looking …

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