pyrrhiccomedy:


Astronomers have discovered the largest known structure in the universe, a clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes.

So that’s cool and everything, but maybe some of you would be interested to know why this is a significant find? Beyond just its record-setting bigness.
Since Einstein, physicists have accepted something called the Cosmological Principle, which states that the universe looks the same everywhere if you view it on a large enough scale. You might find some weird shit over here, and some other freaky shit over there, but if you pull back the camera far enough, you’ll find that same weird and/or freaky shit cropping up over and over again in a fairly regular distribution. This is because the universe is (probably) infinite in size and (we are pretty darn sure) has, and has always had, the same forces acting on it everywhere.
So why is this new LQG so radical? (It stands for ‘Large Quasar Group,’ btw, not ‘Light Quasar Group.’)
Well, let’s try to comprehend the scale we’re dealing with. A ‘megaparsec,’ written Mpc, is about 3.2 million light years long. The Milky Way is about 0.03 Mpc across (or 100,000 light years). The distance between our galaxy and Andromeda, our closest galactic neighbor, is 0.75 Mpc, or 2.5 million light years. LQGs are usually about 200 Mpc across. Assuming a logarithmic distribution of weird shit outliers (if you don’t know how logarithmic distribution curves work, don’t worry about it), cosmologists predicted that nothing in the universe should be more than 370 Mpc across.
This new LQG is 1200 Mpc long. That’s four billion light years. Four BILLION LIGHT YEARS. Just to travel from one side to the other of this one thing. I mean for fuck’s sake, the universe is only about 14 billion years old! How many of these things could there be? 
Right now it looks like the Cosmological Principle might be out the window, unless physicists can find some way to make the existence of this new LQG work with the math (and boy, are they trying). And that’s totally baffling. It would mean—well, we don’t have any idea what it would mean. That the universe isn’t essentially uniform? That some ‘special’ physics apply/applied in some places but not in others? That Something Happened that is totally outside our current ability to understand or quantify stuff happening?
By the way, no one lives there. The radiation from so many quasars would sterilize rock.
Sources: 1 2 3

pyrrhiccomedy:

Astronomers have discovered the largest known structure in the universe, a clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes.

So that’s cool and everything, but maybe some of you would be interested to know why this is a significant find? Beyond just its record-setting bigness.

Since Einstein, physicists have accepted something called the Cosmological Principle, which states that the universe looks the same everywhere if you view it on a large enough scale. You might find some weird shit over here, and some other freaky shit over there, but if you pull back the camera far enough, you’ll find that same weird and/or freaky shit cropping up over and over again in a fairly regular distribution. This is because the universe is (probably) infinite in size and (we are pretty darn sure) has, and has always had, the same forces acting on it everywhere.

So why is this new LQG so radical? (It stands for ‘Large Quasar Group,’ btw, not ‘Light Quasar Group.’)

Well, let’s try to comprehend the scale we’re dealing with. A ‘megaparsec,’ written Mpc, is about 3.2 million light years long. The Milky Way is about 0.03 Mpc across (or 100,000 light years). The distance between our galaxy and Andromeda, our closest galactic neighbor, is 0.75 Mpc, or 2.5 million light years. LQGs are usually about 200 Mpc across. Assuming a logarithmic distribution of weird shit outliers (if you don’t know how logarithmic distribution curves work, don’t worry about it), cosmologists predicted that nothing in the universe should be more than 370 Mpc across.

This new LQG is 1200 Mpc long. That’s four billion light years. Four BILLION LIGHT YEARS. Just to travel from one side to the other of this one thing. I mean for fuck’s sake, the universe is only about 14 billion years old! How many of these things could there be? 

Right now it looks like the Cosmological Principle might be out the window, unless physicists can find some way to make the existence of this new LQG work with the math (and boy, are they trying). And that’s totally baffling. It would mean—well, we don’t have any idea what it would mean. That the universe isn’t essentially uniform? That some ‘special’ physics apply/applied in some places but not in others? That Something Happened that is totally outside our current ability to understand or quantify stuff happening?

By the way, no one lives there. The radiation from so many quasars would sterilize rock.

Sources: 1 2 3

(Source: wasbella102)

stealthboy:

how many times do doctors need to confirm that lack of sleep is physically and emotionally harming high school students because of how early they have to be up before someone will give enough of a shit about these kids’ health to actually change something

30

September

29,797 notes

This text was reblogged from anightlybarmitzvahinthemix and originally by stealthboy.

#help us please

Frozen and Once Upon a Time Parallels

30

September

7,467 notes

This photo was reblogged from queenofdisneymovies and originally by kpfun.

mrdalekandco:

isilienelenihin:

^^^

(Source: mycroftplayingoperation)

30

September

30,432 notes

This photo was reblogged from eventhesparrows and originally by mycroftplayingoperation.

bunnerina:

Demand more research into mental illnesses

Demand more education on mental illness

Demand more positive representation of mental illness

Destroy the stigma that surrounds mental illness

Don’t let more kids struggle all their life not knowing what is wrong with them

Don’t let mental illnesses go unrecognized and untreated

Destroy this environment that favors neurotypical able people

30

September

10,089 notes

This text was reblogged from sweetandlovelygirl7 and originally by bunnerina.

(Source: snowwhties)

30

September

6,949 notes

This photo was reblogged from sweetandlovelygirl7 and originally by snowwhties.

mywhisperedcolors:

Slowly replacing the negative thoughts with colors and beautiful things.

mywhisperedcolors:

Slowly replacing the negative thoughts with colors and beautiful things.

30

September

209,811 notes

This photo was reblogged from sweetandlovelygirl7 and originally by mywhisperedcolors.

realhousewivesofnightvale:

Don’t wish death on your enemies. Wish geese on them. Wish thousands of geese into their life. Geese in their yard. Geese in their car. Geese in their workplace. Geese in their bed. Tiny geese in their hair. Geese in their food. JPEGs of angry geese overtaking their computer. Turn their whole family into geese. Awful hissy mean geese everywhere. A fate worse than death.

30

September

90,099 notes

This text was reblogged from sweetandlovelygirl7 and originally by realhousewivesofnightvale.

"Some of the most powerful words in the Bible are “I will be with you.”"

- Charles Stanley (via simply-divine-creation)

30

September

1,923 notes

This quote was reblogged from god-cares and originally by simply-divine-creation.

Conceal, don’t feel.

(Source: catherinechandler)

30

September

1,079 notes

This photo was reblogged from sweetandlovelygirl7 and originally by catherinechandler.