The one thing I don't understand about this is, hasn't that light already past us? I mean, hasn't 4.5B years worth of light already pass by the earth?
@squirreljester2 Nope. It hasn't even reached us yet. The speed of light is very fast in terms of everyday life, but in the vast darkness of the universe, it is, unfortunately, DRUDGINGLY slow. The distance between everything is so massive, that it takes such large amounts of time, such as 4,500,000,000 years to even come relatively close to things such as us.
For a greater effect and understanding, play the 1990's computer game called 'Homeworld'. You'll understand after a few minutes.
@Fetusmilkshake Take supernova for instance. We can see a supernova happen, and then it's done, never to be seen again. Now, if we hadn't seen it, it would have still happened, that light passed by us.
My question still stands, hasn't 4.5B years of light already passed us?
And I've played homeworld, but a looooong time ago... what am I supposed to get from that?
@squirreljester2 The Homeworld reference was just to help assist the picture of absolutely mind-bendingly giant spaces between objects in outer space.
As for the light, no. If you take a look at the Hubble 'Deep Space' image, that picture is light from over 4 billion years ago that hasn't reached us yet. Short answer: Light is incredibly slow in the universe, despite it being fast for you or me.
If you need help understanding or clarification, please feel free to send a message to my inbox.
How is it that, after so many years of inflation/expansion of the universe, we can still see (hypothetically) the center? Tyson says we can see close, but would it really be possible to see the birth (of universe) now, after so much time has elapsed? By our estimations, 13.6 billion years must have elapsed before our very own existence. But, then, how did we get here before light would have? Einstein's 'special' theory. I think we need to look more closely at the energy/matter relationship
@tahitiluva You're thinking about it wrong. The matter of the Universe is not flying away from a common "center". The (poorly named) "Big Bang" was an expansion of space itself which continues to this day. The space in the room you're in is slowly expanding. (About 10%/billion yrs. And the Big Bang occurred literally right in front of you. And in front of me. Everywhere.
So let me get this straight, people are completely content with an answer that some dude in park gives them about their questions pertaining to the universe and not a book that was written through the inspiration of God and has been tried and tested throughout history no matter who tries to discredit it? Interesting.
Newsflash! Jean-Luc Picard visits Earth and asks a question of the astrophysicist in the park: "So, why have they not found a cure for baldness in the 24th Century, Neil?" "Um, baldness was deemed "cool" in the 23rd?" "Ah yes, of course! Thank you, good scientist. Good day to you, sir. One to beam up, Number One. Make it so. Energize."
The one thing I don't understand about this is, hasn't that light already past us? I mean, hasn't 4.5B years worth of light already pass by the earth?
squirreljester2 10 months ago
@squirreljester2 Nope. It hasn't even reached us yet. The speed of light is very fast in terms of everyday life, but in the vast darkness of the universe, it is, unfortunately, DRUDGINGLY slow. The distance between everything is so massive, that it takes such large amounts of time, such as 4,500,000,000 years to even come relatively close to things such as us.
For a greater effect and understanding, play the 1990's computer game called 'Homeworld'. You'll understand after a few minutes.
Fetusmilkshake 6 months ago
@Fetusmilkshake Take supernova for instance. We can see a supernova happen, and then it's done, never to be seen again. Now, if we hadn't seen it, it would have still happened, that light passed by us.
My question still stands, hasn't 4.5B years of light already passed us?
And I've played homeworld, but a looooong time ago... what am I supposed to get from that?
squirreljester2 6 months ago
@squirreljester2 The Homeworld reference was just to help assist the picture of absolutely mind-bendingly giant spaces between objects in outer space.
As for the light, no. If you take a look at the Hubble 'Deep Space' image, that picture is light from over 4 billion years ago that hasn't reached us yet. Short answer: Light is incredibly slow in the universe, despite it being fast for you or me.
If you need help understanding or clarification, please feel free to send a message to my inbox.
Fetusmilkshake 6 months ago
eventually telescopes will become so good that they will see Chuck Norris at the very point the big bang occured
shadowace421 1 year ago
@shadowace421 Chuck Norris can see the Big Bang without telescopes.
Neueregel 1 year ago
Neil Degrasse Tyson.... thoroughly nice bloke.
happyidiottalk 1 year ago
How is it that, after so many years of inflation/expansion of the universe, we can still see (hypothetically) the center? Tyson says we can see close, but would it really be possible to see the birth (of universe) now, after so much time has elapsed? By our estimations, 13.6 billion years must have elapsed before our very own existence. But, then, how did we get here before light would have? Einstein's 'special' theory. I think we need to look more closely at the energy/matter relationship
tahitiluva 1 year ago
@tahitiluva You're thinking about it wrong. The matter of the Universe is not flying away from a common "center". The (poorly named) "Big Bang" was an expansion of space itself which continues to this day. The space in the room you're in is slowly expanding. (About 10%/billion yrs. And the Big Bang occurred literally right in front of you. And in front of me. Everywhere.
sbergman27 1 year ago
Great question !! and great answer!!
nuke97 2 years ago
lol did the universe expand faster than light speed?
there should be a threshold of how far we can see in the past.
haudace 2 years ago
lol...he's so eccentric.
nlytend1 2 years ago
This has been flagged as spam show
So let me get this straight, people are completely content with an answer that some dude in park gives them about their questions pertaining to the universe and not a book that was written through the inspiration of God and has been tried and tested throughout history no matter who tries to discredit it? Interesting.
bslaybaugh 2 years ago
"and has been tried and tested throughout history no matter who tries to discredit it?"
L O L sure pal...
"not a book that was written through the inspiration of God"
You said it yourself moron, inspiration, nowhere does it says god wrote the bible, anyone can claim to have divine inspiration.
How about tomorrow I come out with a book that I claim was written through divine inspiration, you probably would believe that too wouldn't you?
Simple stories, for simple minds.
Biankito 2 years ago 18
Let me know how that works out for you.
bslaybaugh 2 years ago
Which of the many contradictory, infallible books are you referring to?
Hint: there aren't any.
oneplus999 2 years ago 2
gud trolling m8
chickensesame 2 years ago
yes, it's a shame more people don't look to the quran. or did you mean the Kabbalah?
Antitheist98 2 years ago
I saw just the title on RSS feed, and I thought "I'll bet the expert is good-ol' Neil". Of course it is.
GBart 2 years ago
Don't give up on that time machine, Neil!
Digeridude 2 years ago
I love Neil. So handsome and smart. Awesome that we are looking into thousands sometimes millions of years in the past when we look in the sky.
lindsey2021 2 years ago
Sometimes? Right.
bslaybaugh 2 years ago
Newsflash! Jean-Luc Picard visits Earth and asks a question of the astrophysicist in the park: "So, why have they not found a cure for baldness in the 24th Century, Neil?" "Um, baldness was deemed "cool" in the 23rd?" "Ah yes, of course! Thank you, good scientist. Good day to you, sir. One to beam up, Number One. Make it so. Energize."
JixMa 2 years ago 2
We can not see earlier than about 300 000 years after big bang, because Universe was not transparent for light.
marjan15 2 years ago
that's what I thought as well. I learned it on astronomycast
oggleman 2 years ago
If it gives off light we can see it.
netsoj 2 years ago
Neil your the man!
tjreese86 2 years ago 2
NEIL, VISIT PURDUE !
PartVIII 2 years ago
This is so interesting.
paperorpaper 2 years ago
Look at the way he says "designed" at 00:52.
Neil means business.
PsychoCheese1337 2 years ago 12
haha, yea the way he does his teeth.
mrjordythegreat 2 years ago
Neil deGrasse Tyson is my hero!
axemurderer27 2 years ago
EXCELLENT! <3 Neil DeGrasse Tyson!!
StoneHorseProduction 2 years ago 4