|
Asteroids, meteors, and meteorites
|
|
| neutronium76 | Date: Friday, 24.01.2014, 13:11 | Message # 151 |
 World Builder
Group: Users
Greece
Messages: 718
Status: Offline
| Quote HarbingerDawn (  ) is probably composed of water ice
Lets not jump into conclusions. Water is probably very rare in space. That is why organic life as we know it is also non existent outside earth up to now. These jet streams are probably from other volatile elements such as Nitrogen, or less likely hydrogen or helium. Complex chemicals such as Ammonia, Nitrogen compounds, CO2/CO and water are probably less likely to be found there.
PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
PC2:Core2Quad X9770@3.2GHz, 2 cores/4 threads 4GB DDR2 RAM@1GHz, GTX-285 GPU 1GB VRAM(DDR3)@1.24GHz, OS:WinVistax64SP2
|
| |
| |
| DIS7RICT | Date: Friday, 24.01.2014, 13:24 | Message # 152 |
 Space Pilot
Group: Users
Australia
Messages: 114
Status: Offline
| Quote HarbingerDawn ( ) It's an ice world
That makes sense. I would have expected it if I had known that. Ceres is the only planet I haven't read up about, I think it's time to study.
Quote neutronium76 ( ) Water is probably very rare in space. That is why organic life as we know it is also non existent
Let's not jump to conclusions. There's more than one planetary system in the Universe. We have barely studied our own, we still have no idea if there is other organic life in the Solar system, or any good idea of the abundance of water in our or other systems.
PC: Core i7 3770K 3.5GHz, 8GB RAM, GTX670 2GB, Win 7 64-bit
There'll be another time...
Edited by DIS7RICT - Friday, 24.01.2014, 14:20 |
| |
| |
| midtskogen | Date: Friday, 24.01.2014, 14:18 | Message # 153 |
 Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| Quote neutronium76 ( ) Water is probably very rare in space
Why do you say that? Meteorites may contain quite a lot of water, or have minerals modified by water, direct proof that many asteroids contain significant amounts of water.
NIL DIFFICILE VOLENTI
|
| |
| |
| HarbingerDawn | Date: Friday, 24.01.2014, 16:03 | Message # 154 |
 Cosmic Curator
Group: Administrators
United States
Messages: 8717
Status: Offline
| Quote neutronium76 ( ) Water is probably very rare in space
 You do realize that the reason we know it's water vapor on Ceres is because they use spectrometers to detect the composition? And you do realize that water is the single most abundant compound and second most abundant molecule in the universe, and that the majority of objects in the solar system are composed largely of water ice? Water is not rare; it is extremely common. It is more common in non-gas worlds than any other single substance.
Forgive me, but with as much experience as you have with SE and discussing and learning about astronomy, I find it almost impossible to believe that you didn't know that already.
All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
|
| |
| |
| neutronium76 | Date: Friday, 24.01.2014, 16:20 | Message # 155 |
|
World Builder
Group: Users
Greece
Messages: 718
Status: Offline
| Quote DIS7RICT ( ) we still have no idea if there is other organic life in the Solar system
True. However, based on current observational evidence, our solar system is probably dead.
Quote midtskogen ( ) Meteorites may contain quite a lot of water
Comets yes. Meteorites, if they contain, is probably mixed with a lot of other elements or chemicals and is in a very ''contaminated'' state. Even comets which are believed that contain plenty, have it mixed with dirt and dust. What we see when a comet approaches the sun is this dust and dirt that is being thrown out due to evaporation of all volatile stuff that is trapped within the dust.
Added (24.01.2014, 19:20)
---------------------------------------------
Quote HarbingerDawn ( ) is because they use spectrometers to detect the composition?
Aha so that's how they know. Ok then, Ceres is an exception.
Quote HarbingerDawn ( ) hat water is the single most abundant compound and second most abundant molecule in the universe, and that the majority of objects in the solar system are composed largely of water ice? Water is not rare; it is extremely common
I know of that but I have my doubts and my own beliefs on that matter.
PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
PC2:Core2Quad X9770@3.2GHz, 2 cores/4 threads 4GB DDR2 RAM@1GHz, GTX-285 GPU 1GB VRAM(DDR3)@1.24GHz, OS:WinVistax64SP2
Edited by neutronium76 - Friday, 24.01.2014, 16:23 |
| |
| |
| DIS7RICT | Date: Friday, 24.01.2014, 17:02 | Message # 156 |
|
Space Pilot
Group: Users
Australia
Messages: 114
Status: Offline
| I'm certainly no expert but I have some things to say on these matters.
Quote neutronium76 ( ) True. However, based on current observational evidence, our solar system is probably dead.
But there isn't any proper observational evidence dismissing life, except on the obvious planets. There is a little evidence for life on Mars though. It has water-ice just under the surface as physically seen by the Phoenix lander. However I'm (or anyone else for that matter) not saying that it has life, but that the chance for subsurface life is there, however small it may be. There is also evidence for sub-surface oceans existing on Callisto, Dione, Enceladus and Europa, which could also support life, and now possibly but unlikely, Ceres. There is still a lot to see and find, so making that assumption so soon isn't a good idea. This isn't the future, we don't have devices that we point to other planets that read back "NO LIFE SIGNS DETECTED". We need to go there to be sure.
Quote neutronium76 ( ) Comets yes. Meteorites, if they contain, is probably mixed with a lot of other elements or chemicals and is in a very ''contaminated'' state. Even comets which are believed that contain plenty, have it mixed with dirt and dust. What we see when a comet approaches the sun is this dust and dirt that is being thrown out due to evaporation of all volatile stuff that is trapped within the dust.
So you're saying that the all the oceans, rivers, lakes, ponds and puddles on earth aren't all mixed with dirt, dust and other elements? Of course they are, and they even have life in almost every single one of them. No one was insisting it was pure water to begin with.
Quote neutronium76 ( ) Aha so that's how they know. Ok then, Ceres is an exception.
What the..? Didn't you read any of the released information, or even know anything about how we study other worlds? How else were we supposed to know? We didn't just take a picture and say "Hey, that must be water spurting out over there!".
Quote neutronium76 ( ) I know of that but I have my own beliefs on that matter.
It doesn't matter how much you believe otherwise, the evidence is there and it points to the fact. What is the point in believing something if you can't prove it in any way, shape or form? What exactly are your beliefs and how do you back them up, and with what evidence?
Anyone with higher knowledge may correct me if I am misleading anywhere.
EDIT: Sorry if I seem harsh or mean, I'm not trying to be.
PC: Core i7 3770K 3.5GHz, 8GB RAM, GTX670 2GB, Win 7 64-bit
There'll be another time...
Edited by DIS7RICT - Friday, 24.01.2014, 17:07 |
| |
| |
| neutronium76 | Date: Friday, 24.01.2014, 17:35 | Message # 157 |
|
World Builder
Group: Users
Greece
Messages: 718
Status: Offline
| Quote DIS7RICT ( ) It has water-ice just under the surface as physically seen by the Phoenix lander
Current evidence suggests that it is very unlikely. Probably false readings from the device.
Quote DIS7RICT ( ) We need to go there to be sure
No we don't. there is enough evidence that there is no life in our solar system.
Quote DIS7RICT ( ) So you're saying that the all the oceans, rivers, lakes, ponds and puddles on earth aren't all mixed with dirt, dust and other elements? Of course they are, and they even have life in almost every single one of them. No one was insisting it was pure water to begin with.
Conditions on earth permit life even on dirty water. Conditions in space don't.
Quote DIS7RICT ( ) We didn't just take a picture and say "Hey, that must be water spurting out over there!".
I thought that this was how we discover water.
Quote DIS7RICT ( ) the evidence is there and it points to the fact.
The evidence is not conclusive. We have to look more carefully.
PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
PC2:Core2Quad X9770@3.2GHz, 2 cores/4 threads 4GB DDR2 RAM@1GHz, GTX-285 GPU 1GB VRAM(DDR3)@1.24GHz, OS:WinVistax64SP2
|
| |
| |
| HarbingerDawn | Date: Friday, 24.01.2014, 17:40 | Message # 158 |
|
Cosmic Curator
Group: Administrators
United States
Messages: 8717
Status: Offline
| Quote neutronium76 ( ) I know of that but I have my doubts and my own beliefs on that matter.
So a spectrometer detecting water on Ceres is acceptable evidence, but it's not acceptable when it comes to all the other water that has been detected in the universe? And like DIS7RICT said, your beliefs are irrelevant since they have no bearing on what is actually true.
EDIT: Ok, from that last post you made (after I made this one), I have to conclude that you're either trolling or just don't care about the truth in any way. You refuse to accept even the most definitive and concrete evidence of an obvious fact: that water is abundant in the universe. In either case, there is no point in continued discussion.
All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
Edited by HarbingerDawn - Friday, 24.01.2014, 17:43 |
| |
| |
| DIS7RICT | Date: Friday, 24.01.2014, 18:31 | Message # 159 |
|
Space Pilot
Group: Users
Australia
Messages: 114
Status: Offline
| Quote neutronium76 ( ) Current evidence suggests that it is very unlikely. Probably false readings from the device.
How can physically seeing water-ice evaporate be a false reading? It wasn't a reading.
Quote neutronium76 ( ) No we don't. there is enough evidence that there is no life in our solar system.
What? You can't be serious can you? Did you not listen to anything I said? What evidence are you talking about. Please show us and any scientist out there so we can stop wasting millions of dollars and all of our time trying to find it then.
Quote neutronium76 ( ) Conditions on earth permit life even on dirty water. Conditions in space don't.
I wasn't saying they did permit life or needed to on asteroids. Of course life can't exist in a vacuum. What were you trying to prove when you were saying it was dirty water to begin with?
Quote neutronium76 ( ) I thought that this was how we discover water.
You really need to learn some more about how we do these things. I don't think you have even the slightest idea.
Quote neutronium76 ( ) The evidence is not conclusive. We have to look more carefully.
It may not be conclusive, but at the moment all the evidence to suggest that it is, is there.
Why do I have this feeling you don't know what you are talking about. It's like you do not want to believe that there is life elsewhere. It's almost like you're religious in some way and your beliefs do not allow for such a thing.
Quote HarbingerDawn ( ) In either case, there is no point in continued discussion.
I seem to agree with you on this one.
PC: Core i7 3770K 3.5GHz, 8GB RAM, GTX670 2GB, Win 7 64-bit
There'll be another time...
Edited by DIS7RICT - Friday, 24.01.2014, 18:35 |
| |
| |
| midtskogen | Date: Thursday, 03.04.2014, 14:03 | Message # 160 |
|
Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| New Martian crater.
Added (19.02.2014, 00:15)
---------------------------------------------
Another meteorite has crashed through a roof in Oslo! It was recently found when the owner inspected the roof having noticed some icicles forming at the edge. The meteorite weighs 2.8 kg and broke in two pieces upon impact. It's right in the debris path of the meteorites that fell over Oslo in March 2012 and it lootks identical. This should be more than enough to be sure that the new meteorite is from the same fall. However, the owner finds it strange that the hole in the roof wasn't discovered if it's that old, since the roof was repaired for a leak last summer. And a loud bang was heard in the house in October, the circumstances being so that the date and time of the day are certain, and when we checked with NORSAR who monitor earthquakes and operate an infrasound array 100 km north of Oslo, it turns out that they have an infrasound signal at that very day and time originating in the precise direction of Oslo. While it's totally unlikely that two meteorites hit the ground just a couple of km apart in different falls, which should only happen once in several thousand years, the new meteorite will be analysed to check if it's indeed a new fall. We should know in a few weeks.
Pictures and story (in Norwegian) at:
http://norskmeteornettverk.no/wordpress/?p=1198
http://www.dagbladet.no/2014....1866449
Added (03.04.2014, 17:03)
---------------------------------------------
The totally improbable caught on video: Skydiver films falling meteorite.
Added: The Norwegian broadcasting corporation NRK will feature the story in the main TV news later today and after that in the Schrödingers katt show. For now they have a story online: http://www.nrk.no/viten/skydiver-nearly-struck-by-meteorite-1.11646757 (updated, video with subtitles).
(I'm the guy with backpack appearing around 7:00. That was recorded during a search in May last year.)
NIL DIFFICILE VOLENTI
Edited by midtskogen - Thursday, 03.04.2014, 17:01 |
| |
| |
| Solaris | Date: Thursday, 03.04.2014, 21:06 | Message # 161 |
 World Builder
Group: Global Moderators
France
Messages: 731
Status: Offline
| wow, outstanding ! The skydiver is quite lucky, the meteorite fall pretty close from him..
I hope you guys will find that rock !
|
| |
| |
| HarbingerDawn | Date: Thursday, 03.04.2014, 21:39 | Message # 162 |
|
Cosmic Curator
Group: Administrators
United States
Messages: 8717
Status: Offline
| ...that is the most unbelievable thing I have ever seen. Even with the video evidence I have a hard time believing it. That might be the most unlikely thing ever captured on film. If someone reported something like that and didn't have video of it, no one would believe it. That's really amazing.
All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
|
| |
| |
| midtskogen | Date: Thursday, 03.04.2014, 21:57 | Message # 163 |
|
Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| Going public with the video is an invitation for anyone to solve the riddle. The story is totally improbable. I and many others have spent countless hours analysing the video. Yes, there are missing pieces of the puzzle, most important a missing meteorite, but we've been unable to find any other acceptable explanation. Unless we've missed important clues, a meteorite however unlikely it sounds appears more probable than the alternatives. The videos are not faked.
Almost two years have passed. It's perhaps a tough decision to go public without the crucial evidence for such a wild story, but I think it's the right thing to do.
NIL DIFFICILE VOLENTI
|
| |
| |
| neutronium76 | Date: Thursday, 03.04.2014, 22:35 | Message # 164 |
|
World Builder
Group: Users
Greece
Messages: 718
Status: Offline
| Has anybody thought of the possibility the 2nd skydiver (the object's trajectory is different from the 2nd skydiver) another skydiver that is flying above (and out of the camera's FOV - hence invisible to the camera) intentionally throwing an object close to the 1st one?
PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
PC2:Core2Quad X9770@3.2GHz, 2 cores/4 threads 4GB DDR2 RAM@1GHz, GTX-285 GPU 1GB VRAM(DDR3)@1.24GHz, OS:WinVistax64SP2
Edited by neutronium76 - Thursday, 03.04.2014, 22:47 |
| |
| |
| anonymousgamer | Date: Thursday, 03.04.2014, 22:37 | Message # 165 |
 World Builder
Group: Global Moderators
United States
Messages: 1011
Status: Offline
| There's another object visible in the video. A few frames before the main one enters view, look at the bottom left of the video. You'll see another object.
Desktop: FX-8350 4.0 GHz, 8 GB DDR3 RAM, EVGA GeForce GTX 1080 FTW 8 GB, 2 TB HDD, 24 inch 1920x1080 screen
Laptop: Core i5 480M 2.66 GHz (turbo 2.93), 8 GB DDR3 RAM, AMD Radeon HD 6550m 1 GB, 640 GB HDD, 17.3 inch 1600x900 screen
|
| |
| |
ENG
New site
Greece 
Australia 
Norway 
United States 
France