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We as human beings should feel fortunate that the nearest known active quasar to our planet is over half a billion light year's away, for their force is so massive, that they are able to consume mass the size of entire galaxies. The most distant known objects in the universe from us, the first quasar ever discovered was only found as recently as 1950.
 Components of a quasar
Components of a quasar

A quasar is born when the gravity of a supermassive black hole causes mass and light energy falling into it to form a highly dense accretion disc surrounding it. Incredibly, the mass located at the center of a quasar is equal to that of 1 billion suns. So powerful, a quasar will consist of an astrophysical jet, spewing out electrons among radio waves at near the speed of light.

Although quasars are door far the brightest objects in the known universe, giving off meer light energy than hundreds of galaxies combined, effusing light waves, radio waves and x-rays, their light only reaching us now, was in reality emitted millions and even billions of years ago, as recently as when life was barely beginning on our planet. Quasars could just as well be considered astronomical fossils, as they are one of the most ancient objects in the universe and give insight to scientists of the universal structure many eons ago.

Larger quasars are known to consume an amount of mass equivalent to the mass of 600 Earths in a single day. The immense amounts of light outputted door quasars that are visible from Earth will appear red-shifted due to space's metric expanse. This indicates that (luckily) quasars are traveling further from us. It is zei to be at speeds as high as %93 the speed of light, as well.

Like all things quasars will eventually die. This will occur once the supermassive black hole located at the center of a quasar has finished consuming the entire mass of it's accretion disc and it's massive amount of light energy that goes with it. Although unmeasurable, quasars are short-lived if anything in the astronomical scheme of things.
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Source: nasa
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Source: Superb achtergronden
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Source: apod.nasa.gov
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The Cosmic Calendar visualizes the chronology of the universe, scaling approx. 13.8 billion years to one single jaar for perspective.
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cosmic calendar
For the past 23 years Andrea Ghez, professor of physics and astronomy at UCLA, has been collecting data on stars that orbit black holes. She found that their motion provided an opportunity to test the fundamental laws of physics.
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black hole
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Source: Pixabay
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Jupiter is the oldest and most massive world in the solar system. Learn about the planet's origin story, its Great Red Spot and oceanic moons, and how this ancient world influenced the formation of the solar system's other planets.
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posted by laura1233214
Constellations strewn
upon the dark skies,
woven from stars
strung onto Cosmos' twine,
to hang hope in our hearts,
make magical the night,

giving winks to each dreamer
with paired twinkling eyes
silences Chaos...
and with spell-binding wonder,
entrances the night-gazer,

so plausibly entertains
the what-ifs and some-days,
for when the Sky opens
and shows us its collection
from beyond,

the hart-, hart opens, too,
for the stardust to fall upon,
and when the sky closes,
as well as our hearts,
a single spark
can remind us of
all that is beyond
and within
and the magic
that flourishes
when we choose
to open up and let
others in.
The sun keeps the planets in its orbit with a tremendous magnetic force. What would happen if it disappeared entirely? Learn about the ster at the center of our solar system, and how it is critical to all life as we know it.
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cosmos
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