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Old 07-21-2015, 08:54 AM   #361
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First high resolution photo of Pluto causes concern:
Looks like a giant sub-woofer to me...
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Old 07-28-2015, 08:12 PM   #362
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Pluto Pic

https://www.nasa.gov/image-feature/g...-in-true-color

Thought it would be good to get an actual picture of the planetoid.
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Old 09-28-2015, 06:42 PM   #363
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Water on Mars is news worthy.


http://www.nytimes.com/2015/09/29/sc...ater.html?_r=0


So is Jeff Bezos' rocket start up.
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Old 11-04-2015, 09:23 PM   #364
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Very interesting news about the EM drive. How is this possible? NASA Defies the Laws of Physics, Says Their 'Impossible' EM Drive Actually Works
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Old 11-05-2015, 08:29 AM   #365
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Very interesting news about the EM drive. How is this possible? NASA Defies the Laws of Physics, Says Their 'Impossible' EM Drive Actually Works

Very interesting.
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Old 11-06-2015, 09:37 AM   #366
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Very interesting news about the EM drive. How is this possible? NASA Defies the Laws of Physics, Says Their 'Impossible' EM Drive Actually Works
There are plenty of media stories surrounding this that too easily extrapolate what one NASA team is examining to mean that this is some sort of secret warp drive technology that NASA is pursuing. The jury is still out on this tech. Even if the physical phenomina can be proven, it's still fusion energy timescales (always 30 years out) from being practical.
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Old 11-06-2015, 10:04 AM   #367
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There are plenty of media stories surrounding this that too easily extrapolate what one NASA team is examining to mean that this is some sort of secret warp drive technology that NASA is pursuing. The jury is still out on this tech. Even if the physical phenomina can be proven, it's still fusion energy timescales (always 30 years out) from being practical.
Oh, I'm sure at my age (65) I won't get to hop on NASA's EM transwarp spaceship in my lifetime. What I find fascinating is that there is a phenomenon that seems to defy known laws of physics. I certainly hope this does not turn out to be one of those crack pot perpetual motion machine sagas...
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Old 11-06-2015, 10:15 AM   #368
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Oh, I'm sure at my age (65) I won't get to hop on NASA's EM transwarp spaceship in my lifetime. What I find fascinating is that there is a phenomenon that seems to defy known laws of physics. I certainly hope this does not turn out to be one of those crack pot perpetual motion machine sagas...
I think that's exactly what it is. Nonexistium and unobtainium
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Old 11-06-2015, 09:52 PM   #369
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Very interesting news about the EM drive. How is this possible? NASA Defies the Laws of Physics, Says Their 'Impossible' EM Drive Actually Works
I cry BS.

I remember the Dean Drive, a uni-directional drive. I did what I now know as a line integral in minute detail by hand and got nada net force. If it 'defies the laws of physics' it is a fraud IMHO.
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Old 11-24-2015, 06:51 PM   #370
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Another step in the exciting saga of private space exploration! Blue Origin Beats SpaceX In Landing Reusable Rocket | Popular Science

Having Jeff Bezos and Elon Musk slugging it out can only lead to good things for my future as an irascible old asteroid prospector.
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Old 11-24-2015, 06:52 PM   #371
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Looks like it takes a big ego to run a rocket company.

Jeff Bezos vs. Elon Musk: A Thrilling, New Space Race - Bloomberg Business

And here is a thoughtful and interesting comparison between what SpaceX is attempting to do and what Blue Origin has just done.

http://www.slate.com/blogs/bad_astro..._shepherd.html
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Old 11-24-2015, 06:54 PM   #372
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In case you're wondering, getting and staying in orbit requires a lot more energy than just a quick trip up and down.

Here's as good explaination. Basically, the vehicle needs speed - lots and lots of speed - so it can fall around the Earth.

https://what-if.xkcd.com/58/
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Old 11-24-2015, 07:20 PM   #373
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In case you're wondering, getting and staying in orbit requires a lot more energy than just a quick trip up and down.

Here's as good explaination. Basically, the vehicle needs speed - lots and lots of speed - so it can fall around the Earth.

https://what-if.xkcd.com/58/
True dat, and an excellent explanation. Musk is definitely doing more toward getting into space. But still, it's the landing that was so impressive. Did you watch the video/ad? It's not landing on a barge in the ocean, but it was still cool.
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Old 11-24-2015, 07:26 PM   #374
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http://spotthestation.nasa.gov/sightings/#.VlUNe8Q8KK0

Speaking of the ISS - You can get an email telling you when to look up to watch it fly over from this site.


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Old 11-24-2015, 11:50 PM   #375
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It is amazing what some rich people are able to do with a small budget that NASA has not been able to do with many billions of dollars...


And most countries can not even think about doing what these private companies are doing....


I think Musk is a bit wrong in what he said... I read an article and it pointed out that his rocket that they are trying to land does not achieve orbit... now, it is trying to land a long distance from where it started, but it is not an orbital part of the rocket....
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Old 11-25-2015, 05:27 AM   #376
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I think Musk had a bit of a jealousy reaction there on all the press attention

A great day for humanity, and happy that a few billionaires are doing this type of stuff.
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Old 11-25-2015, 07:23 AM   #377
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Denies the laws of physics, as we understand the laws of physics today. So much we don't understand yet. So much more to learn and unlock the secrets of.
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Old 11-25-2015, 11:14 AM   #378
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It is amazing what some rich people are able to do with a small budget that NASA has not been able to do with many billions of dollars...


And most countries can not even think about doing what these private companies are doing....


I think Musk is a bit wrong in what he said... I read an article and it pointed out that his rocket that they are trying to land does not achieve orbit... now, it is trying to land a long distance from where it started, but it is not an orbital part of the rocket....
With all respect, NASA has done and will continue to do many amazing things. Landing rovers on Mars, flying by Pluto, orbiging Mercury, etc. Blue Origins accomplishment while very interesting is not nearly the same as actually putting a crew into orbit and getting them back again.

NASA's big problem is that the politicians have meddled with it to the point that they spend far to much of their budget on supporting the re-election campaigns of certain politicians. (ie. rocketry jobs in certain districts and states.)

SpaceX has, I think, bigger issues of energy and trajectory to solve, than Blue Origin has. The Blue Origin rocket is essentially a 'pop-gun' compared to a vehicle that puts satellites into low earth orbit.

Still, it is a noteworthy accomplishment and we are better off because of their work.
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Old 11-25-2015, 11:29 AM   #379
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And most countries can not even think about doing what these private companies are doing....
+1

A good point. And I can't help but notice that Musk came the the USA to build his business, and, amazingly enough, to California. (Isn't that state doomed by drought, earthquakes, traffic jams, illegal immigrants, taxes and environmental zealots? )
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Old 11-25-2015, 11:31 AM   #380
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Here's another approach to using a sub-orbital vehicle to launch small satellites into orbit.

Quote:
COR Lynx vehicle is a two-seat piloted space transport vehicle that will take humans and payloads on a suborbital flight.
Mission Capabilities - XCOR Science - Science, not fiction
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