Sentences with phrase «cosmic dawn»
The phrase "cosmic dawn" refers to the very beginning of the universe, when the first stars and galaxies started to form. It's like the sunrise of our universe. Full definition
This could mean that there was more radiation than predicted at cosmic dawn, or that the neutral hydrogen was being cooled by something.
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That's valuable information because astronomers are intensely interested in this first generation of stars, in an era often called cosmic dawn.
In effect, this research has opened a window into cosmic dawn, one that started 180 million years after our universe was born and ended 70 million years later — a period that represents the short time span of the first stars.
Below: Group photo taken at the «Half a Decade of ALMA: Cosmic Dawns Transformed» conference.
«Monster black hole discovered at cosmic dawn.»
Although there's some way to go before all these pieces of evidence add up to a revolutionary discovery, it's exciting to think that astronomers haven't just opened a window into cosmic dawn; they may have opened a window into the origins of dark matter, too.
Over 200 astronomers from all around the world have gathered in Indian Wells, California, U.S.A. to participate in the «Half a Decade of ALMA: Cosmic Dawns Transformed» conference held between September 20 and 23 and organized by the Atacama Large Millimeter / submillimeter Array (ALMA) and its partners: The National Radio Astronomy Observatory (NRAO), the National Astronomical Observatory of Japan (NAOJ), and the European Southern Observatory (ESO).
Today's physics has observed that the universe's initial conditions and physical constants were configured in such a delicate way during the cosmic dawn that, if these conditions and constants had been only slightly different, the universe would never have permitted the evolution of life and mind.
Indeed, from the point of view of revelation, if not from science, there can be no alternative to our looking for such promise in the cosmic dawn.
Loeb says «cosmic dawn,» when the first stars in the universe lit up, probably dates to 200 million years or sooner after the big bang.
«The result of JWST's upcoming measurements will provide a much more complete picture of the formation of galaxies at the cosmic dawn.»
One prize could be given for detecting the signature of the cosmic dawn, and another for the dark matter implications.
This «cosmic dawn» left its mark on the hydrogen gas that surrounded the stars (SN: 6/8/02, p. 362).
Determining the timing of this «cosmic dawn» is one of the holy grails of modern astronomy, and it can be indirectly probed through the study of early interstellar dust.
The quasar dates from a time close to the end of an important cosmic event that astronomers referred to as the «epoch of reionization»: the cosmic dawn when light from the earliest generations of galaxies and quasars is thought to have ended the «cosmic dark ages» and transformed the universe into how we see it today.
Like a ship approaching a distant beacon, astronomers are getting closer and closer to the cosmic dawn, the time in the universe's history when the first stars formed.
«Cosmic dawn was likely not a dramatic event.»
Much of that data will come from the James Webb Space Telescope — scheduled for launch in 2018 — which is expected to see all the way to the cosmic dawn.
During this period, which extended from the cosmic dawn to about 1 billion years after the big bang, ultraviolet light was breaking down hydrogen in the universe into a soup of electrons and protons, making the universe more transparent.
But later that year, new data showed that the signal they'd seen was primarily due to dust in our galaxy rather than to gravitational waves from the cosmic dawn.
During an era known as the «cosmic dawn,» the first stars were forged from primordial hydrogen and helium gas.
«That's one of the primary goals of our collaboration — to try to get the first statistical measure of that weak signal from our cosmic dawn.»
In their cosmic dawn quest, the project's researchers have been busy probing another source of ancient radiation called the cosmic microwave background, or the CMB.
«The result of Webb's upcoming measurements will provide a much more complete picture of the formation of galaxies at the cosmic dawn.»
Exactly when «cosmic dawn» occurred, however, has been open to debate.
The researchers spent two years confirming and reconfirming their findings, trying to determine if the signal really was a window into cosmic dawn or unfortunate noise from our galaxy.