EPTA few youtube channels you should check out if you're an astronomy buff.
Deep Astronomy
Deep Sky Videos
Space Rip
Sixty Symbols
Maybe they could be added to the OP ^_^
Astronomy thread! - Page 4
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omisa
United States494 Posts
A few youtube channels you should check out if you're an astronomy buff. Deep Astronomy Deep Sky Videos Space Rip Sixty Symbols Maybe they could be added to the OP ^_^ | ||
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NadaSound
United States227 Posts
It's a composite image of the eagle nebula in IR and X-rays. The description states that there is evediance of a supernova that went of about 6000 years ago that most likely derstoyed the great pillars of creation, but we wont be able to notice for about 500 more years because the eagle nebula is around 6500 lys away from us. | ||
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rebuffering
Canada2436 Posts
On February 04 2012 15:30 NadaSound wrote: Here's a sight thats should be on your Bookmark bar Astronomy Picture of the Day Archive. The entery for the 3rd of Febuary was pretty interesting. + Show Spoiler + It's a composite image of the eagle nebula in IR and X-rays. The description states that there is evediance of a supernova that went of about 6000 years ago that most likely derstoyed the great pillars of creation, but we wont be able to notice for about 500 more years because of the eagle nebula is 6500 lys away from us. God i love the Nasa site for this, so much amazing information, and great pictures as well, one can truly appreciate these things, even tho they are so amazing, they are almost incomprehendable. | ||
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m4inbrain
1505 Posts
The one thing i dont get, if the super nova is ~6000 years old (the one which apparently destroyed the pillars), how could we get a picture of them in the first place? Am i missing something? Edit: and damn we need higher resolution on telescopes. -.- | ||
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KSMB
United States100 Posts
On February 04 2012 15:52 m4inbrain wrote:The one thing i dont get, if the super nova is ~6000 years old (the one which apparently destroyed the pillars), how could we get a picture of them in the first place? Am i missing something We see the expanding shock wave of the supernova before it has reached the pillars and destroyed them. Over in the nebula, at present, they have already been destroyed, but that light hasn't reached us yet since the whole thing is about 7000 light years away. | ||
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sheaRZerg
United States613 Posts
Just in case people dont know about it. Astronomy Picture of the Day is a cool site. NASA sites in general are pretty cool to browse through and have a seemingly endless number of photographs. On February 04 2012 15:52 m4inbrain wrote: The one thing i dont get, if the super nova is ~6000 years old (the one which apparently destroyed the pillars), how could we get a picture of them in the first place? Am i missing something? Edit: and damn we need higher resolution on telescopes. -.- It is probably about 6000 light years away. Spaces is pretty huge man...it takes a while for light to get to us, so everything we see in the sky, we are seeing sometime in the past. Unfortunately higher resolution telescopes are to some extent not all that big of improvements because of the limitations of looking through the atmosphere, and its difficult to operate a large telescope like hubble in space. Some day they should make a really big one on the moon...that would get some amazing pictures. I wish I were Carl Sagan....he has a Time Ship. (IN SPACE!) | ||
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m4inbrain
1505 Posts
6500 lightyears, 6000 years old supernova - ..? Maybe im just too tired (9.00am here, and didnt sleep -.-), but i actually dont get it why they just now know that they are/could be gone. Which actually doesnt really matter, if you think about it. Its not like i couldve ever seen that with my own eyes. Which actually makes me kinda sad, because all these pictures of nebulae and stuff, well.. Meh, i should go to bed now. Goodnite, astro boys.  Edit: but i am curious, xray imaging etc, that should not be influenced by our atmosphere, should it? | ||
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Ayush_SCtoss
India3050 Posts
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m4inbrain
1505 Posts
Mindboggling. That actually is really scary, to know that we dont know enough to even explain how the basics work (dark matter or whatever you want to call it should be really basic i think, without "it" nothing would be like it is). | ||
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ToT)OjKa(
Korea (South)2437 Posts
Improved UI Added "Current Mission discussion" tab. This week - Kepler, the search of extrasolar planets! Added more images. Images most likely have nothing to do with where they are placed. Added "Favourite Planet" poll. Next week, the poll may be "Most interesting Moon". Merged various information. To be done: Will be adding "Gods" section at some point. This will contain information and works of Sagan and others that deserve it (input needed). Section on Galaxies, birth, life, contents, collisions. Cosmology The birth of the universe Feel free to add and collect information that can be merged so we can make this a MEGATHREAD. On February 04 2012 09:49 braebot wrote: me being a troll here, but space isn't on earth  huahuahua | ||
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NadaSound
United States227 Posts
On February 04 2012 21:29 m4inbrain wrote: Not just in your opinion. Theres a lot to discover still in many fields, but i actually think we dont even scratch on the surface in case of the universe. Theres so much we cant even explain (not properly), like gravity, "dark matter", "dark energy", stuff like that. We know there has to be something like that (at least we think) - but proper evidence? No. All theory. Because for our understanding (at the moment) there has to be something like that, otherwise the universe wouldnt work. Mindboggling. That actually is really scary, to know that we dont know enough to even explain how the basics work (dark matter or whatever you want to call it should be really basic i think, without "it" nothing would be like it is). Interestingly enough there is solid evidence for the existence of dark matter and dark energy. The evidence for both dark matter and dark energy come from several sources the most compelling being the results obtained by WMAP, which analyzed the cosmic microwave background radiation (CMBR). In terms of dark energy, the CMBR results are consistent with the observed acceleration of the universe by the study of distant supernovas (this research won a noble prize last year). Another piece of evidence for dark matter is the rotation rate of galaxies. All normal (baryonic) matter emits electromagnetic radiation in some for or another. By analyzing the dynamics of a galaxy there is not enough normal matter to keep the together at the rate that they rotate. This implies that the is some other stuff that does not emit EM radiation which is contributing to the mass of the galaxy to keep it from flying apart hence the name "dark mater". What is even more interesting, which you touched on, is what we don't know or understand. We can not explain what triggers a gas cloud to collapse to form stars, nor do we have any clue about how a star actually goes super nova. I was totally blown away when I learned that we have absolutely no idea of how elements heavier than iron were generated to the abundances we see today!!!! On February 04 2012 16:44 m4inbrain wrote: I actually dont get it. About 20 years ago they took the picture from the pillars. At that point, the supernova had to be visible, or am i mistaken? I know about the delay, but thats what i dont get. 20 years in space.. ahm, "relation"? Is nothing. If they can see a ~6000 years old supernova (or the remnants of it), it shouldnt be "news" that the pillars are destroyed? 6500 lightyears, 6000 years old supernova - ..? Maybe im just too tired (9.00am here, and didnt sleep -.-), but i actually dont get it why they just now know that they are/could be gone. Which actually doesnt really matter, if you think about it. Its not like i couldve ever seen that with my own eyes. Which actually makes me kinda sad, because all these pictures of nebulae and stuff, well.. Meh, i should go to bed now. Goodnite, astro boys. Edit: but i am curious, xray imaging etc, that should not be influenced by our atmosphere, should it? Referring to your edit: I'm not exactly sure what the question is, but X-rays can only be observed from space. Our atmosphere is opaque (not transparent) to X-ray radiation. | ||
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Oldfool
Australia394 Posts
Link: http://en.spaceengine.org/ Videos! + Show Spoiler + I can spend hours in this sim and not get bored, enjoy! | ||
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KSMB
United States100 Posts
On February 05 2012 01:38 NadaSound wrote:Sorry dude but that is incorrect. The x-rays in the image show the presence of super massive stars. These stars have a very short life time. Through a series of calculation the life span of these stars can be estimated and by analyzing the spectra of the stars their progress through their evolution can be determined. One of these massive stars, through these calculation, was show to have gone supernova about 6000 years ago. So we wont see any evidence of the supernova or the destruction of the great pillars for another 500 or so years. You are going to have to give me the references to these calculations. While it is true you can estimate age and life span of massive stars, I have never seen a claim that it can be done with such astonishing precision. | ||
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Arathore
104 Posts
Interesting that one of my favorite space quotes would come from a person like Joe Rogan. This is a great video though and really makes you realize how taken for granted space is. | ||
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Duka08
3391 Posts
My current undergrad research advisor is Dr. Nemiroff at Michigan Tech, one of the co-authors/founders of APOD Edit: On February 05 2012 02:23 Oldfool wrote: Can't believe no-one has mentioned SpaceEngine! It's an open universe simulation which procedurally generates galaxies, stars, planets, in addition to being completely up-to-date with space databases (so everthing that has been discovered and named is generated as real). The scope of the engine is truely humbling!! Link: http://en.spaceengine.org/ Videos! http://www.youtube.com/watch?v=yo1weyeu3e8&feature=related + Show Spoiler + I can spend hours in this sim and not get bored, enjoy! Ho-ly shit sounds great. Going to have to check this out ASAP. Got Universe Sandbox on Steam not long ago which is similar but different, and didn't live up to my expectations (though it was fun in other ways!) | ||
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ODKStevez
Ireland1225 Posts
On February 04 2012 07:37 Kinetik_Inferno wrote: This thing is in my room and it's like the size and weight of my torso. ![[image loading]](http://www.millenniumhouse.com.au/img/img-title-lrg-astronomica.jpg) I want this. | ||
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NadaSound
United States227 Posts
On February 05 2012 02:41 KSMB wrote: You are going to have to give me the references to these calculations. While it is true you can estimate age and life span of massive stars, I have never seen a claim that it can be done with such astonishing precision. Blah... Fuck!!! I'm incorrect | ||
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DreamChaser
1649 Posts
On February 05 2012 02:23 Oldfool wrote: Can't believe no-one has mentioned SpaceEngine! It's an open universe simulation which procedurally generates galaxies, stars, planets, in addition to being completely up-to-date with space databases (so everthing that has been discovered and named is generated as real). The scope of the engine is truely humbling!! Link: http://en.spaceengine.org/ Videos! + Show Spoiler + http://www.youtube.com/watch?v=yo1weyeu3e8&feature=related + Show Spoiler + I can spend hours in this sim and not get bored, enjoy! I don't know how to install that i have tried and it was just bad cause i said download in English then it went into Russian so i was like WTF? If you could PM or post details i would be grateful | ||
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Oldfool
Australia394 Posts
On February 05 2012 03:23 DreamChaser wrote: I don't know how to install that i have tried and it was just bad cause i said download in English then it went into Russian so i was like WTF? If you could PM or post details i would be grateful It's pretty much download and run, I don't know how you can go wrong with the download page on the website. Pick any mirror (.ru mirror will require translation or intuition to navigate, but depositfiles links do work fine) | ||
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AbuseYouMerc
Netherlands171 Posts
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