Space Astronomy

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Expand view Topic review: Space Astronomy

Re: Space Astronomy

Post by art0hur0moh » Wed Nov 10, 2021 10:31 pm

LordRaven wrote:
art0hur0moh wrote:
LordRaven wrote:
art0hur0moh wrote:



Art old bean, have you any thoughts on the wafer thin satellites, not much bigger than mobile phones, satellites, that they are thinking of launching, and then accelerating by laser to andromeda?

Depending on the speed of acceleration achieved, and the time it takes radio etc to get back to us, we could get feedback within a lifetime.

Which would be incredible.

Haven't heard of them before now? Don't think it would work, there is to much between there and here? Heard of light propulsion, still not clear on how it works well enough, especially beyond the solar systems outer limits? Remember how Papillion escaped the island? One source of propulsion i think insufficient for experimentation. Then there is the signals need for power. Voyagers use nuclear power and still had to power down to conserve energy.


Apologies, I meant Alpha Centauri, not Andromeda --which would be impossible to get to by such a method.

Designed as a Light Sail for propulsion, it would also be a Solar Panel in order to power itself from any solar power, and that would include any Star it arrived at.


still can't figure if it is the binary star in the constellation of andromeda? Even at the speed of light it would be unlikely we could reach another galaxy. I have a vague memory the closest star being 4 light years away 380km 5,200,000s? Still to many obstructions between there and here!

Re: Space Astronomy

Post by LordRaven » Wed Nov 10, 2021 7:03 pm

art0hur0moh wrote:
LordRaven wrote:
art0hur0moh wrote:



Art old bean, have you any thoughts on the wafer thin satellites, not much bigger than mobile phones, satellites, that they are thinking of launching, and then accelerating by laser to andromeda?

Depending on the speed of acceleration achieved, and the time it takes radio etc to get back to us, we could get feedback within a lifetime.

Which would be incredible.

Haven't heard of them before now? Don't think it would work, there is to much between there and here? Heard of light propulsion, still not clear on how it works well enough, especially beyond the solar systems outer limits? Remember how Papillion escaped the island? One source of propulsion i think insufficient for experimentation. Then there is the signals need for power. Voyagers use nuclear power and still had to power down to conserve energy.


Apologies, I meant Alpha Centauri, not Andromeda --which would be impossible to get to by such a method.

Designed as a Light Sail for propulsion, it would also be a Solar Panel in order to power itself from any solar power, and that would include any Star it arrived at.

Re: Space Astronomy

Post by art0hur0moh » Tue Nov 09, 2021 7:08 pm

LordRaven wrote:
art0hur0moh wrote:



Art old bean, have you any thoughts on the wafer thin satellites, not much bigger than mobile phones, satellites, that they are thinking of launching, and then accelerating by laser to andromeda?

Depending on the speed of acceleration achieved, and the time it takes radio etc to get back to us, we could get feedback within a lifetime.

Which would be incredible.

Haven't heard of them before now? Don't think it would work, there is to much between there and here? Heard of light propulsion, still not clear on how it works well enough, especially beyond the solar systems outer limits? Remember how Papillion escaped the island? One source of propulsion i think insufficient for experimentation. Then there is the signals need for power. Voyagers use nuclear power and still had to power down to conserve energy.

Re: Space Astronomy

Post by LordRaven » Sun Nov 07, 2021 5:43 pm

art0hur0moh wrote:



Art old bean, have you any thoughts on the wafer thin satellites, not much bigger than mobile phones, satellites, that they are thinking of launching, and then accelerating by laser to andromeda?

Depending on the speed of acceleration achieved, and the time it takes radio etc to get back to us, we could get feedback within a lifetime.

Which would be incredible.

Re: Space Astronomy

Post by art0hur0moh » Thu Oct 21, 2021 6:58 pm

Re: Space Astronomy

Post by LordRaven » Sat Oct 16, 2021 12:02 pm

art0hur0moh wrote:


If it launches December we should get some images in mid 2022, exciting times ahead Art.
This thing will see much further out, and in much greater detail than Hubble and all other current space telescopes.

Image

Re: Space Astronomy

Post by art0hur0moh » Tue Oct 12, 2021 9:30 pm

Re: Space Astronomy

Post by LordRaven » Sat Oct 09, 2021 12:28 pm

art0hur0moh wrote:
LordRaven wrote:
art0hur0moh wrote:


Interesting Art, how anyone would get hold of the substance would require many centuries of scientific breakthroughs.

In the meantime, and a lot closer to home, this looks favourite for more destructive and faster space propulsion...



Creating it, or farming it is space, is impossible until containment is achieved.

But when it is, it will be a frightening, and yet awesome, prospect for the advancement of man in the cosmos.


A theoretical proposition that has significantly less traction today.


Unlike Neutron Star farming? :yikes: Like that will ever happen.

Art, we have created anti-matter, insignificant amounts agreed, but nevertheless we do have the ability to do so.
When Fusion becomes more realistic, the technological advances in that will add to this ability too.
We can't really go farming the Van Allen Belt for anti-matter, that would be bloody dangerous.
Personally, one day I envisage man creating a fusion device that creates and stores anti matter and then releases it upon request into a chamber where it will mix into a chamber in a vacuum (space) to collide with an equivalent amount of matter to provide enormous thrust. Anti-matter engine bescially.
We already have fusion engines that have been tested since the 1950's that work on the same principle, so why not? Anything is possible.

Re: Space Astronomy

Post by art0hur0moh » Tue Oct 05, 2021 4:06 pm

LordRaven wrote:
art0hur0moh wrote:


Interesting Art, how anyone would get hold of the substance would require many centuries of scientific breakthroughs.

In the meantime, and a lot closer to home, this looks favourite for more destructive and faster space propulsion...



Creating it, or farming it is space, is impossible until containment is achieved.

But when it is, it will be a frightening, and yet awesome, prospect for the advancement of man in the cosmos.


A theoretical proposition that has significantly less traction today.

Re: Space Astronomy

Post by LordRaven » Tue Sep 28, 2021 7:10 pm

art0hur0moh wrote:


Interesting Art, how anyone would get hold of the substance would require many centuries of scientific breakthroughs.

In the meantime, and a lot closer to home, this looks favourite for more destructive and faster space propulsion...



Creating it, or farming it is space, is impossible until containment is achieved.

But when it is, it will be a frightening, and yet awesome, prospect for the advancement of man in the cosmos.

Re: Space Astronomy

Post by art0hur0moh » Sat Sep 18, 2021 11:38 pm

Re: Space Astronomy

Post by LordRaven » Sat Feb 20, 2021 5:35 pm

drum wrote:
art0hur0moh wrote:
LordRaven wrote:"Best map of Milky Way reveals a billion stars in motion
Data haul from Gaia space observatory offers a glimpse of what Earth’s night sky will look like for 1.6 million years to come."

https://www.nature.com/articles/d41586-020-03432-9

Science just keeps on finding out more and creating far more new questions to answer

there is no way of knowing that. No evidence to support theory.


What do you think of the Mars landing Arthur ?


Good question, although Art will answer about something totally unrelated. :gigglesnshit:

Re: Space Astronomy

Post by drum » Sat Feb 20, 2021 4:56 am

art0hur0moh wrote:
LordRaven wrote:"Best map of Milky Way reveals a billion stars in motion
Data haul from Gaia space observatory offers a glimpse of what Earth’s night sky will look like for 1.6 million years to come."

https://www.nature.com/articles/d41586-020-03432-9

Science just keeps on finding out more and creating far more new questions to answer

there is no way of knowing that. No evidence to support theory.


What do you think of the Mars landing Arthur ?

Re: Space Astronomy

Post by art0hur0moh » Sat Feb 20, 2021 12:28 am

LordRaven wrote:"Best map of Milky Way reveals a billion stars in motion
Data haul from Gaia space observatory offers a glimpse of what Earth’s night sky will look like for 1.6 million years to come."

https://www.nature.com/articles/d41586-020-03432-9

Science just keeps on finding out more and creating far more new questions to answer

there is no way of knowing that. No evidence to support theory.

Re: Space Astronomy

Post by LordRaven » Sun Feb 14, 2021 6:42 pm

art0hur0moh wrote:
art0hur0moh wrote:
LordRaven wrote:
art0hur0moh wrote:
LordRaven wrote:
Yes it is you stupid boy! You wait until the new space based telescopes are up and running, we will discover even more wonders and encounter even more puzzles that need solving.
It is how we learn.
It is called Science.

observation, theory, experiment, observation, hypothesis... peer review.

experiment, is data collected through observation. Science doesn't find out anything, people do buy observing the results of their effort without bias in an effort to prove their own theoretical predictions, babies and toddlers are masters of the scientific art. Most discoveries are made by accident, study is mostly a means to understand reason or purpose of observations discovered by accident.

scientia: knowledge. No observation, no science. Knowledge without understanding is like a ship without rudder. If your definition of science is knowing what questions to ask then it is partially true so long as the answers are not biased, and are based on methodical comprehension.


Thanks for agreeing :thumbsup:

wrong! Particle physics dehydrate predictions where wrong and that was only thirty years ago. We will not know anything because we wont be alive. It might, and it might not! Is knowing the limitations of scientific investigation. Not neglecting the time it take for light to travel there is no indication anything we see exist as we see it in the first place! It is theoretical, not even evidence of a big bang!


"The mission has expanded its catalogue of stars by 15%, to 1.8 billion, and its measurements have become more precise. Compared with 2018, Gaia’s distance measurements are 50% better, and those of stellar velocities are 100% better, van Leeuwen says.

To achieve this improvement, the mission team had to overcome an unexpected issue with the probe. As the spacecraft spins, sunlight falls on it at varying angles, which slightly deforms its shape. This has affected its measurements of stellar positions more than expected."

That is what science is!

You finally read my link and now agree it is science, you are now officially a convert --well done!

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