Millions of years after the Big Bang, somestars formed.
These could’ve been the first stars that brought light into the universe.
These stars formed right after the “ DARK AGES ” –
which by the way is the time AFTER
the Big Bang but BEFORE there was any light,
where the universe was filled with just dark gas.
Astronomers found these very first stars by using a radio telescope
out in Western Australia.
Radio telescopes are cool because they are able to detect radio waves,
which are the longest wavelength known to exist in our universe,
meaning it can detect stuff that ’ s traveled
great distances to get to us.
Based on changes detected in the Cosmic Microwave Background Radiation,
astronomers were able to create models SUGGESTING that 180 million years
after the Big Bang, these first stars
This adds to previous research,
and now we are lead to believe that these first stars
were probably BLUE stars,
and based on the spectral classifications of stars we know
that blue stars were hot, young,
short-lived stars, that die naturally by a
supernova explosion or a collapse of its core into a black hole.
通过使用Murchison Radio 天文气象台的设备
By using instruments at the Murchison RadioAstronomy Observatory, astronomers picked
up dips in the frequency received from the early universe,
and THIS represents the moment
that stars first formed and began interacting with the matter around them.
Not only can this lead us into a better understanding
of our early universe, and its evolutionary
But according to the scientists,
this could possibly be the work of cold dark matter particles
pulling energy away from the hydrogen gasand cooling it down.
This is all speculation of course,
since we still don’t have confirmation of dark matter existing,
BUT this new info could help it out.
So let ’ s see what more research
there is to come out of this finding… because understanding the early universe means getting closerto finding the meaning of life.
Like learning about star stuff?
Check out this video Trace did on starquakes!
One last thing…
The data collected from this research came
from giant radio telescope antennas that are
not much different than those on your FM radio.
Thanks for watching.