“How do you not know where you are?” questioned Dean.
“Well you see we kind of just appear and the Doctor never takes us where we’re supposed to go which is how we ended up here.Wherever here is.”Clara twisted about as she glanced around the room.
“Well we’re obviously in an underground bunker of some type judging from the architecture.It’s only recently been inhabited by these two.Whoever the last people where they left about fifty years old in design based off the equipment.The bunker itself was built a hundred years ago at least,” Sherlock deducted.
“How-?” Sam began.
“It’s best not to question him or he’ll go into great detail about the rocks, dirt, and such,” John recommended.
“You still haven’t answered our question.”Dean stepped forward.
“Ah yes well you see it was an accident a malfunction or something and we appeared in your bunker.Or it might not have been a malfunction at all and the TARDIS brought us here for a reason,” the Doctor answered finally.
“The TARDIS?” Sam questioned.
“Time and relative dimension in space,” Sherlock recited.“It is a spaceship that can travel through time.”
“But it’s a police box,” Dean responded in disbelief.
“Yes it is bravo for your observation skills,” Sherlock sneered.
“Sherlock be nice,” John scolded.“He means it cloaks itself.The Doctor apparently likes it to look like a police call box.”
“Hey, she looks lovely,” the Doctor retorted.“Anyways I’m the Doctor this is Clara and I already introduced them.”The Doctor gestures in Sherlock and John’s directions.“You are?”
“I’m Sam and this is my brother Dean,” Sam introduced.
“Sam and Dean Winchester?”The Doctor’s face lit up.“Wonderful!Absolutely wonderful!I’ve heard of you.You’re supposedly monster hunters!”
“Monster hunters?What you mean like ghosts and werewolves and such?” Clara asked.
“Monsters aren’t real.”Sherlock rolled his eyes at their idiocy.
Dean smirked.“I hate to break it to you but that’s where your wrong.”
WELL THAT TOOK ALL OF TWO SECONDS TO REBLOG. HOLY SHIT I CAN’T EVEN. I. CAN. NOT. EVEN.
I would have sex with this music.
I wasn’t going to reblog it because I thought I reblogged too much Doctor Who music and there are only so many times you can reblog I am the Doctor but NOPE I WAS WRONG THERE ARE NEVER TOO MANY TIMES TO REBLOG IT ESPECIALLY WHEN IT’S LIKE THIS
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.