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black hole the size of 12 billion suns found, debunks all theories of the universe by Urbain Le Verrier - Thu, 26 Feb 2015 19:38:03 EST ID:GFgbSSMF No.55071 Ignore Report Reply Quick Reply
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This article tripped me the fuck out, and scared me a bit. I don't like that something this scary is visible from Earth.
13 posts and 3 images omitted. Click Reply to view.
Charles Messier - Wed, 18 Mar 2015 02:14:57 EST ID:lHGvTKQL No.55143 Ignore Report Quick Reply
Correct, however I must add that we can't perceive 3 dimensions because it requires time to perceive.

And nothing is truly 3 dimensional in this universe because even though an object may look stationary and very rigid, it's molecules are moving and the object is never permanent.

We live in a 4D Spacetime, at least.
Cecelia Payne-Gaposchkin - Thu, 19 Mar 2015 22:41:53 EST ID:JIt5A3UU No.55148 Ignore Report Quick Reply
i got curious and decided to calculate the force of gravity from this bitch. I got 7.85*10^28 Newtons and what the fuck.

This means Earth should be accelerating toward the spot where it once was at 13 km/s.

Or is that not how gravity works? Does this mean gravity is instantaneous? Am I stupid?
Harlow Shapley - Fri, 20 Mar 2015 09:18:57 EST ID:415JX8nG No.55149 Ignore Report Quick Reply
I think you're fine, just didn't take in angular momentum of the earth and time doesn't become a factor until you use relativity
Charles Bolton - Fri, 20 Mar 2015 12:39:27 EST ID:jScv5urc No.55151 Ignore Report Quick Reply
Your math horribly wrong. I don't think you have calculated the distance correctly.
Urbain Le Verrier - Fri, 20 Mar 2015 23:32:14 EST ID:JIt5A3UU No.55153 Ignore Report Quick Reply

No, I am stupid, forgot to square the total distance. Total force between the two bodies is 557 N, we gud

How does it make you feel? by Daniel Kirkwood - Sun, 15 Feb 2015 04:36:13 EST ID:9T8PqMeL No.55035 Ignore Report Reply Quick Reply
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So as far as I know, there are two theories on the ultimate fate of the Universe.

One is that the Universe will experience heat death and that chemical reactions and everything reliant upon them will cease to be.

The other is that the universe will tear itself a new one, collapse in on itself and reset.

Either way, humanity, every other sapient species in the universe and everything we've ever known and accomplished will amount to nothing.

On a scale from "Stubbed your toe" to "Visigoths sacking Rome", how does that make you feel?

For me, I'd say that it triggers a "Read Ecclesiastes and contemplated petty arson" kind of feeling.
16 posts and 2 images omitted. Click Reply to view.
Chushiro Hayashi - Fri, 06 Mar 2015 12:53:47 EST ID:gRBEStbH No.55106 Ignore Report Quick Reply
Chushiro Hayashi - Fri, 06 Mar 2015 12:55:46 EST ID:gRBEStbH No.55107 Ignore Report Quick Reply
"Anything worth knowing can't be taught. It must be experienced."
Carl Whitaker
Allan Sandage - Fri, 06 Mar 2015 15:36:34 EST ID:Wzs50sSC No.55109 Ignore Report Quick Reply
> Either way, humanity, every other sapient species in the universe and everything we've ever known and accomplished will amount to nothing.

I'll be dead long before that happens, so I honestly don't care. I just want to live my life to the fullest, do chill science stuff, and hopefully try to help others when I am able to.
Karl Jansky - Fri, 06 Mar 2015 19:02:10 EST ID:FVrU3tol No.55111 Ignore Report Quick Reply
Throwing that weak mess around here is kind of insulting
Edwin Hubble - Fri, 20 Mar 2015 11:22:01 EST ID:IGgsfW+0 No.55150 Ignore Report Quick Reply

Personally, I already felt like whatever humans did would amount to nothing in the grand scheme of things anyway. I have absolutely no faith that Humanity won't completely blow each other up in the future and eventually when Earth dies entirely nothing we didw would matter anyway. I don't believe we'll ever colonize another planet or anything, I think we're too stupid as a species for anything that cool.

CERES, BITCH by Stephen Hawking - Thu, 26 Feb 2015 04:28:40 EST ID:uyuUt0io No.55065 Ignore Report Reply Quick Reply
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4 posts and 1 images omitted. Click Reply to view.
Galileo Galilei - Tue, 03 Mar 2015 21:49:22 EST ID:XJHlYsmW No.55092 Ignore Report Quick Reply

Cryovolcanism isn't new, we've seen it on Enceladus and probably on Europa and Titan, too.
Russel Hulse - Wed, 04 Mar 2015 15:49:05 EST ID:jGLzk50k No.55097 Ignore Report Quick Reply
This is pretty fucking neat
Whatever it may be, it looks interesting to the layman like myself

I guess we'll have a better idea on friday (?)
Stephen Hawking - Fri, 06 Mar 2015 14:16:37 EST ID:jGLzk50k No.55108 Ignore Report Quick Reply
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It's in orbit!
I would be lying, if i said i wasn't excited most about the bright spots.
Seems like it's a bit of a wait still, until we get clearer images, though.
It's pretty fucking cool nevertheless

"The most recent images received from the spacecraft, taken on March 1 show
Ceres as a crescent, mostly in shadow because the spacecraft's trajectory put it on a side of Ceres that faces away from the sun until mid-April. When Dawn emerges from Ceres' dark side, it will deliver ever-sharper images as it spirals to lower orbits around the planet."
George Hale - Tue, 17 Mar 2015 19:17:32 EST ID:uyuUt0io No.55142 Ignore Report Quick Reply

You seem to be correct, sir!
Looks like it's water vapor outgassing. NEAT
Fred Whipple - Mon, 27 Apr 2015 17:06:39 EST ID:l/7F60uv No.55258 Ignore Report Quick Reply
I think you're defining the word "novel" too strictly. I'd consider any form of cryovolcanism to be novel because the evidence itself is relatively new and much of it is based on indirect observation.

Astronomy 101 by Allan Sandage - Tue, 10 Mar 2015 16:45:18 EST ID:ng5PGFH1 No.55120 Ignore Report Reply Quick Reply
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I need your help, I'm completely clueless.
If Hydrogen has a spectral line of 656nm and it is measured in a distant galaxy at 705nm, how would you find the recessional velocity of the galaxy?
Edmond Halley - Tue, 10 Mar 2015 17:23:02 EST ID:kB08C8qN No.55121 Ignore Report Quick Reply
Edmond Halley - Wed, 11 Mar 2015 18:13:34 EST ID:rjqBmvyM No.55125 Ignore Report Quick Reply
Wouldn't you need at least one other line? A given spectrum could be translated as well as stretched/compressed, and a single line wouldn't be able to distinguish those, right?
Edwin Salpeter - Sat, 14 Mar 2015 10:41:12 EST ID:kB08C8qN No.55130 Ignore Report Quick Reply
Wavelength dependent effects are rare and in the optical almost always destroy the lines. Just treat it all as a velocity, it's the safest bet.

Size And Age Of Universe Suggests The Existence Of Alien Life by Alium Man - Fri, 06 Mar 2015 11:18:40 EST ID:CLP0/vbo No.55104 Ignore Report Reply Quick Reply
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We are not alone in the universe, just because we have not found life on other planets some people seem to doubt the possibility of alien life. I'm just here to tell you we have not even explored 1% of our galaxy for alien life. It's even probable that there are sentient species as advanced or more advanced than our own i this galaxy based upon the age of it. The main ingredients for life (amino acids) are not that uncommon from what we know. How do we know for sure those are not alien spacecraft we see on occasion in our skies? What's your theory on how advanced alien life is?
Christiaan Huygens - Sat, 07 Mar 2015 18:34:09 EST ID:uyuUt0io No.55113 Ignore Report Quick Reply
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there's already a space alien thread on page 0, so i'm not gonna bump, but until we find fossils or microbes or something somewhere that isn't Earth, or until somebody talks to us, it isn't 'probable', it's possible. We've literally got a sample size of 1 to look at right now. Kind of impossible to determine probability based on the one single rock in a galaxy with billions and billions of rocks that sprouted life.
It's fun to think about, and I'm in the camp that believes there's life out there, but we just can't possibly know it based how very, very little we can observe things not on Earth.

Furthermore, 'sentient' life seems like an unbelievably rare occurrence. It's only happened once here. Multicellular life in itself is probably excessively rare if life even exists elsewhere to begin with, animal life even moreso. Rarer still would be a self-aware species. Yet rarer would be self-aware species capable of technological civilization. It's fairly safe to assume quite a few civilizations would end themselves before reaching the stars, and who knows; it might simply be too much time and energy to cross interstellar space for such a species to leave its home planet.

UFOs being filled with little green men is silly, though. Remember all those UFO sightings in the American Southwest during the Cold War? How people thought that they had flying saucers holed up in Area 51, and then a bunch of files were declassified and it turned out the Air Force was testing SR71s and shit out there?
If space aliens have the technology to efficiently get around and build a galactic civilization, then we're like, an ant colony in New York City to them. So advanced compared to us that we could not possibly comprehend them.

I dunno, man. Imagine what people might be like if we manage to maintain a technological civilization for a a thousand, a hundred thousand, one million, five hundred million, even billions of years.

Who knows, though, maybe we're lucky number one. The first civilization to emerge in the galaxy. It's not unfeasible, really. Shit, we might even be the first planet to have life. Or …
Comment too long. Click here to view the full text.

Greased Darkspeed by Shit Hettingstock - Wed, 04 Feb 2015 18:24:41 EST ID:IhokWyRc No.54990 Ignore Report Reply Quick Reply
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Slip the what? Dark the who? MY HEAD ASPLODE
Bernhard Schmidt - Thu, 05 Feb 2015 19:02:24 EST ID:3dhJAQX4 No.54996 Ignore Report Quick Reply
I always wonder what people who make these sort of threads are like in real life. It fascinates me.
Caroline Herschel - Mon, 16 Feb 2015 07:15:19 EST ID:ZZdLgro4 No.55041 Ignore Report Quick Reply
>asperger levels above space

Non-stellar black hole by Alan Guth - Sun, 30 Mar 2014 23:19:17 EST ID:ZhOAg7La No.53409 Ignore Report Reply Quick Reply
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OK, odd question but...well marijuana is what...

Here we go - Is a non-stellar black hole theorhetically possible?
Imagine no restrictions of the creation of it. You have an unlimited supply of dense matter to throw into a big old sphere. Say, I dunno...Iron. Unlimited iron. You can just throw that shit by the teraton into one even pile.

I mean, you could create a black hole eventually, right? It would get really fucking hot at first...molten...then maybe some sort of weird plasma? But we keep throwing on the mass. Using special Future Magic to keep shit contained. You get a black hole at some point, right?
23 posts and 2 images omitted. Click Reply to view.
Arno Penzias - Mon, 09 Feb 2015 11:08:46 EST ID:ZM0jvM6N No.55014 Ignore Report Quick Reply
A nova isn't the same thing as a supernova which involve black holes.

The paper claims it will not impact observations as you get something that is for all practical purposes a black hole. This is a debate for theorists and many have pointed to a number of grand assumptions made on the paper.
Johannes Kepler - Mon, 09 Feb 2015 12:59:51 EST ID:YHjXylC8 No.55015 Ignore Report Quick Reply
>you get something that is for all practical purposes a black hole
Where are you reading that? As far as I can tell, it's effectively saying "When we do calculations this way, it says the collapse reverses before the is compressed beyond its Schwarzschild radius, causing everything to explode away."
Wilhelm Beer - Tue, 10 Feb 2015 13:11:50 EST ID:ZM0jvM6N No.55020 Ignore Report Quick Reply
It's from one of the other papers published by the author. I'm not sure if that's still what she thinks.
Robert Dicke - Tue, 10 Feb 2015 23:49:27 EST ID:415JX8nG No.55022 Ignore Report Quick Reply
It doesn't matter what element it is made of, it is strictly a measure of total mass.
A earth mass of iron would be a planet, a solar mass of iron collapses into a neutron star.

Iron nuclei are much more massive than hydrogen and helium, remember the real implications of the periodic table.
Margaret Burbidge - Fri, 13 Feb 2015 19:53:11 EST ID:4HbkLal6 No.55030 Ignore Report Quick Reply
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>the universe started when a bunch of shit got thrown together

If instead of astronomy, young Carl had instead become interested in the culinary arts. by Riccardo Giacconi - Sun, 08 Feb 2015 12:18:46 EST ID:ZmBRgB9c No.55007 Ignore Report Reply Quick Reply
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Friedrich Bessel - Sun, 08 Feb 2015 12:59:17 EST ID:4HbkLal6 No.55008 Ignore Report Quick Reply
Apple Pie, vol. 84930
Wilhelm Beer - Sun, 08 Feb 2015 18:43:00 EST ID:KCC23SOp No.55009 Ignore Report Quick Reply

Meat Planet!!!
Whitey Fanwater - Sun, 08 Feb 2015 18:50:39 EST ID:3I5fR38C No.55010 Ignore Report Quick Reply
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food would be so much more delicious

Celestron 127EQ by Edwin Hubble - Sun, 04 Jan 2015 18:14:07 EST ID:1FsPM3Cw No.54891 Ignore Report Reply Quick Reply
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I'm gonna start this thread out by saying, this is one of the most appropriately named boards on the web. With that being said, I have had a life long passion for astronomy for 30 years now and I have finally acquired a really good telescope. The Celestron 127EQ is the scope I have (got it last month for my birthday) and it seems to be a rather good investment for a beginner. I do have some troubles though. I got the telescope put together without trouble, but I have trouble with coordinates and with the adjusting of it. I can of course move it around and swivel it, but sometimes it doesn't want to lock into position. If any of you could give me some tips and advice it would be much appreciated. I just really want to get the hang of this hobby so I can begin photographing, the telescope comes with a mount for a camera. Anyway, pic related, this is it.
Henry Russell - Sun, 04 Jan 2015 18:41:21 EST ID:ksAXy5yQ No.54892 Ignore Report Quick Reply
I'd say that you need to consult the user manual more closely.

I'm not trying to be a punk but why would random people know how a certain model of telescope works? There's billions and billions of them.

I guess I could suggest tightening all the knobs better but without actually touching the telescope, my guess is as good as yours.
Nicolaus Copernicus - Tue, 13 Jan 2015 02:51:48 EST ID:Dnv5U1Ks No.54905 Ignore Report Quick Reply
Is that pic related? It looks 8"

Invest in a bigger one if you can. You will be glad you did.

nb cuz not helpful
Hannes Alven - Mon, 02 Feb 2015 09:59:16 EST ID:SiTp3J4K No.54983 Ignore Report Quick Reply
just put one of these on it and then point the scope at cool stuff in the sky and look at it through the eye piece

you might want a different mount for it if yours is slipping. it doesn't look like a very good mount...you probably won't be taking many astro photos with it. i have a similar scope on this tripod with steel legs for ultra stability, it's pretty good! - http://www.telescopesandbinoculars.co.uk/acatalog/AZ4-HEAVY-DUTY-ALT-AZIMUTH-MOUNT---TRIPOD-------1606.html
Hannes Alven - Mon, 02 Feb 2015 10:02:07 EST ID:SiTp3J4K No.54984 Ignore Report Quick Reply
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i meant to post this. it's a telrad. they're pretty tight and they're not too spenno...probably one of the best astronomy accessories i've purchased.

also im beginning to learn that a nice set of binoculars is pretty important for backyard astronomy, probably even more important than a scope tbh

m(11) by Kan Li Zhong - Tue, 06 Jan 2015 14:35:49 EST ID:Qrrkgdjp No.54896 Ignore Report Reply Quick Reply
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cyanide in space (toward galactic core)
waxy cyanide in space (toward galactic core)
cyanide on Mars (furthest from Sol than Earth)
Radioactive Water (Diduetrium Oxide)
Watery super planets near the Galactic Core
Cold, Rogue Gas Giants (No detected host star) opposite of Glesian superplanets

after a little research using Twitter I'll find the location of Mars at the point of Curiosity's recent discovery.
Karl von Weizsacker - Tue, 06 Jan 2015 23:52:25 EST ID:L6PvDKDA No.54900 Ignore Report Quick Reply
> Radioactive Water (Diduetrium Oxide)
What? Heavy water isn't radioactive, though it's used in some types of reactors. What are you on about anyway? nb

cool video by Walter Baade - Tue, 06 Jan 2015 00:15:08 EST ID:415JX8nG No.54895 Ignore Report Reply Quick Reply
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Here's a cool video on quantum mechanics I found, there's no hard math in it, but it really made me see things in a different way.

It revolves around the famous debate between Bohr and Einstein over really their philosophies on the fundamental nature of reality. But it really drove home to me a lot of principals of quantum mechanics.

Picture is of the election shell around a hydrogen atom
Also: General far out stuff thread
Walter Baade - Tue, 06 Jan 2015 15:21:45 EST ID:H3af7FdZ No.54897 Ignore Report Quick Reply

Worlds Largest Optical Telescope Gets Green Light by Urbain Le Verrier - Tue, 09 Dec 2014 19:35:39 EST ID:CSHK8ujB No.54790 Ignore Report Reply Quick Reply
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The European Extremely Large Telescope (E-ELT), a planned 39 meter telescope to be built high in the atacama desert has received sufficient funding to move into implementation. The observatory aims for first light around 2024.


At 39 meters the telescope will dwarf the current 8-10 meter class telescopes with 4 times the resolution and about 15 times the collecting area.

The telescope evolves around several science themes from large to small. It's extreme resolution combines will provide Hubble like views of galaxies 30 times further away but also with the power to resolve every pixel into a spectrum. This will mean a great deal for galaxy formation.

On the topic of exoplanets E-ELT will have a high precision spectrograph capable of confidently detecting earth like planets around sun like stars. With later instruments it will also be capable of directly imaging super-earths. With time it could provide evidence of continents and oceans.

It's high precision spectrograph of directly measuring the expansion of the universe for the first time. Redshift drift is an effect where the expansion of the universe causes redshifts to slowly increase over time.

E-ELT boasts big science and some incredible engineering.
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Thomas Henderson - Fri, 12 Dec 2014 12:50:19 EST ID:YHjXylC8 No.54809 Ignore Report Quick Reply
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Science is done by scientists. They're not trying to sell people products, forming committees to come up with better names names for things don't get us any closer to mars.

Then what are we going to call a device that detects Oort-cloud objects?

HST image 7A24F will resolve a very large region of sky at a very high resolution. It'll be the largest compilation of images at this resolution anyone's done in awhile.
Other telescopes just look at the surface, the Hubble looks deeper. We'll call it "Deep Field"

This one can see even further.
..."Ultra Deep field"?

This one can nearly see back the the start of the universe.
Fuck it, Call it "Deep Field Extreme. But capitalize the X.
Anders Angstrom - Fri, 12 Dec 2014 13:09:24 EST ID:H3af7FdZ No.54810 Ignore Report Quick Reply
for a moment I thought it was called Worlds Largest Optical Telescope
this is indeed getting retarded, whats wrong with John or Bill?
Kiyotsugu Hirayama - Fri, 12 Dec 2014 15:02:50 EST ID:CSHK8ujB No.54811 Ignore Report Quick Reply
Nice post, tiny nitpic. The deep fields are actually a very small region of the sky.
John Bahcall - Mon, 05 Jan 2015 04:07:37 EST ID:uAV78rGD No.54893 Ignore Report Quick Reply
Does it get red, blue, infrared and ultraviolet light too?
John Wheeler - Mon, 05 Jan 2015 23:21:24 EST ID:CSHK8ujB No.54894 Ignore Report Quick Reply
Yes. Initially the instumentation will focus on the near infrared because adaptive optics is easier there and so you get the most out of the telescope. Possibly with a mid infrared camera also. After that visible and UV will come in.

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