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Spaceships and astronomy

Spaceships and astronomy

Old May 31st 2020, 2:49 pm
  #331  
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Default Re: Spaceships and astronomy

Fascinating, I'm not sure what bit was most amazing to me but it blows my tiny mind the preciseness and calculated risks involved in every tiny step at what was 16000 miles an hour?


When the rocket landed back what looked like perfectly onto the drone ship landing spot my jaw dropped.

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Old Jul 17th 2020, 1:31 am
  #332  
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Default Re: Spaceships and astronomy

The comet is quit visible around sunset in my part of the world.

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Old Jul 17th 2020, 4:39 am
  #333  
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Default Re: Spaceships and astronomy

Originally Posted by Phathamster View Post
When the rocket landed back what looked like perfectly onto the drone ship landing spot my jaw dropped.
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Fun fact - the landing burn sequence for SpaceX is managed by a Brit!
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Old Jul 17th 2020, 1:33 pm
  #334  
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Default Re: Spaceships and astronomy

Very nice!
There's way too much light pollution down my way, and it's been really cloudy so I've not bothered to try and catch it unfortunately.
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Old Jul 17th 2020, 5:55 pm
  #335  
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Default Re: Spaceships and astronomy

These guys have the best view, start 3 minutes in unless you want the real "where the [email protected]$! is it" experience

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Old Jul 17th 2020, 6:20 pm
  #336  
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Default Re: Spaceships and astronomy

Originally Posted by mrken30 View Post
The comet is quit visible around sunset in my part of the world.
What a fantastic photo.
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Old Jul 17th 2020, 6:23 pm
  #337  
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Default Re: Spaceships and astronomy

Originally Posted by lizzyq View Post
These guys have the best view, start 3 minutes in unless you want the real "where the [email protected]$! is it" experience

https://www.youtube.com/watch?v=Yh1_wHdUx3Y
3:00 still have me the [email protected]$! experience, 3:20 is cutting to the chase !
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Old Jul 17th 2020, 6:25 pm
  #338  
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Default Re: Spaceships and astronomy

Originally Posted by Shard View Post
3:00 still have me the [email protected]$! experience, 3:20 is cutting to the chase !
Delayed gratification is good for the soul
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Old Jul 17th 2020, 7:48 pm
  #339  
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Default Re: Spaceships and astronomy

For a sense of perspective
https://www.dpreview.com/news/126171...ive-black-hole
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Old Jul 18th 2020, 2:55 pm
  #340  
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Default Re: Spaceships and astronomy

Originally Posted by steveq View Post
This. I still think its wild that due to the black hole's insanely intense gravity that the 'halo' is actually being able to observe the front and back of the accretion disk at the same time.
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Old Jul 18th 2020, 11:54 pm
  #341  
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Default Re: Spaceships and astronomy

Originally Posted by livinginnyc View Post
This. I still think its wild that due to the black hole's insanely intense gravity that the 'halo' is actually being able to observe the front and back of the accretion disk at the same time.
The visualisations of a black hole in the movie Interstellar were developed on supercomputers, by people like Kip Thorne. ISTR that there were something like 15 or 16 research papers published as a direct result.
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Old Jul 19th 2020, 9:40 am
  #342  
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Default Re: Spaceships and astronomy

Still haven't seen that comet
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Old Sep 2nd 2020, 7:39 pm
  #343  
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Default Re: Spaceships and astronomy

They got here as soon as they could.

Gravitational waves from a merger of two black holes took 7 billion years to reach earth!
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Old Sep 2nd 2020, 7:46 pm
  #344  
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Default Re: Spaceships and astronomy

Originally Posted by Pulaski View Post
They got here as soon as they could.

Gravitational waves from a merger of two black holes took 7 billion years to reach earth!
If they arrived much sooner, no Earth to reach !!

I do sometimes wonder if the cosmologists have delved so deeply into the math and instrumentation, that what they purport to know is mere fantasy. I don't think it is, but it does seem preposterous to be able to identify and measure such a phenomena.


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Old Sep 2nd 2020, 7:53 pm
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Default Re: Spaceships and astronomy

Originally Posted by Shard View Post
If they arrived much sooner, no Earth to reach !!

I do sometimes wonder if the cosmologists have delved so deeply into the math and instrumentation, that what they purport to know is mere fantasy. I don't think it is, but it does seem preposterous to be able to identify and measure such a phenomena.
Except this isn't the first observation, and the observed facts fit existing theories. If you are versed in the physics, this is, yes, its tapping for the very edges of our ability to make measurements, but LIGO now is already much more sensitive than the original LIGO of a couple of years ago. Its still not at the theoretical performance limit
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