Scientists have discovered something equally
amazing and alarming.
Apparently, there's a big black hole party
going on at the center of our galaxy and we’re
not invited.
Welcome back to IO, I’m Charlotte Dobre.
I can just picture that black hole party now.
Since as far back as 1931, Scientists hypothesized
that at the center of our galaxy, and most
other galaxies, there are super massive black
holes.
The first signal presence of a black hole
was picked up in 1931.
Black holes emit no visible light or radiation,
which makes them really hard to observe using
current methods.
But apparently, thanks to a new method, it
seems that at the center of our galaxy, the
milky way, there isn’t one super massive
black hole, but thousands.
10 to 20 thousand is the current estimate.
12 of these black holes are within just 3
light-years of the galactic center of our
galaxy, known as Sagittarius A. scientists
at Columbia university found them using info
from NASA’s Chandra X ray observatory.
They detected them using a new method, where
they measured x ray signatures emitted by
stars orbiting the black holes.
Sagittarius A is believed to be surrounded
by this many black holes because of the huge
halos of dust and gas in the vicinity.
I know you’re probably thinking… uhhh…
that doesn’t sound too settling.
Black holes have immense gravitational pull.
but 10 thousand black holes?
Is there a chance that earth could get sucked
into going to this black hole party and never
be able to leave?
Sagittarius A is 4 million times the mass
of our sun.
Its around 26 thousand light years from earth,
or 9.5 trillion kilometers.
So, really, they are pretty far away.
And truth be told, the milky way contains
wayyyy more black holes than just these 10
thousand at the center.
It is estimated that there's around 100 million
in the milky way alone.
One last interesting fact, a new black hole
forms somewhere in our galaxy every second
of every day.
So we’ve probably got a better chance of
being sucked into a parasitic relationship
with a lone black hole than the black hole
party at the center of our galaxy.
Ugh.
Story of my life.
These findings were published in the scientific
journal nature.
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