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.
are you telling us astronomers have discovered something which is literally fucktuple the size of anything else previously estimated to exist
Anything that fucking rewrites all of what we know about the universe needs to get its ass on my blog. It’s giant, glowy, black hole filled ass.
So basically physicists, scientists and NASA (and outerspace buffs) are kinda having a massive orgasm and freaking the fuck out right now.
Imagine stabbing someone with this knife.
It would instantly cauterize the would, so the person wouldn’t bleed, so it’s not very useful.
if you want information it is
and above, in order, we see a gryffindor, a ravenclaw, and a slytherin
why would you stab a PERSON when you can have TOAST?
There’s the hufflepuff
I came in on my Death Star
I never hit so hard in war
All I wanted was to rule the stars
All you ever did was destroy me
Luke I am your father
Shepherd’s Pie from Empty Nest Two Plates Full:
For the Topping:
- 2 medium russet potatoes, peeled and quartered
- 2 medium turnips, peeled and quartered
- Kosher salt
- 4 Tbs. unsalted butter
- 1/2 cup whole milk
- 1/4 cup grated parmesan cheese
- 2 Tbs. fresh chives, chopped
- freshly ground pepper
For the Filling:
- 4 strips thick-cut applewood-smoked bacon, diced
- 2 lbs ground beef chuck
- 1 small onion, finely chopped
- 2 carrots, finely chopped
- 2 stalks celery, finely chopped
- 4 ounces cremini mushrooms,finely chopped, about 2 cups
- 2 tsp. chopped fresh thyme
- 3 Tbs. tomato paste
- 2 Tbs. all-purpose flour
- 1 3/4 cup chicken broth
- 1 Tbs. Worcestershire sauce
- Kosher salt and pepper to taste
- 2 Tbs. chopped fresh parsley
1. Prepare the topping: Put the potatoes and turnips in a large pot and cover with cold water; season with salt. Bring to a boil and cook until tender, about 25 minutes; drain, reserving the pot.
2. Meanwhile, make the filling; Cook the bacon in a large skillet over medium heat, stirring occasionally, until crisp, about 10 minutes. Drain all but 1 Tbs. of the fat; add the beef to the skillet and cook, stirring occasionally, until browned, about 4 minutes. Add the onion, carrots, and celery and cook, stirring, until the vegetables begin to soften, about 4 minutes. Add the mushrooms, thyme and tomato paste and cook, stirring occasionally, until incorporated, about 3 minutes.
3. Stir the flour into the vegetables until incorporated, about 2 minutes. Add the broth, Worcestershire sauce, 3/4 tsp. salt and a few grinds of pepper. Cook until slightly thickened, about 3 more minutes. Stir in the parsley.
4. Preheat the oven to 375. Finish the topping: Combine the butter and milk in the reserved pot and cook over medium heat until the butter is melted. Return the potatoes and turnips to the pot and mash with a potato masher until smooth. Stir in parmesan and chives and season with salt and pepper.
5. Transfer the filling to a 2 1/2-quart baking dish and cover with the topping, spreading evenly. Bake until the topping is golden, about 35 minutes. Let rest 15 minutes before serving.