space conquest

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space conquest

Message  gerardM le Jeu 21 Nov - 14:02

Hi everyone,

For its 15th anniversary, here're 15 key pictures:
Stellar moments from ISS' 15 years in space
The first section of one of the biggest cooperative construction projects in history was launched in 1998. We look back at 15 historic moments from the International Space Station's first 15 years.
Watch -> Blasting off 15 years (so far)

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NASA’s lunar laser mission to boost space communication

Message  gerardM le Dim 29 Déc - 17:05

Hi everyone,

-> NASA’s lunar laser mission to boost space communication
NASA has completed its 30-day lunar laser mission which confirmed that the possibility of expanding broadband capabilities in space using laser communications is as bright as expected.

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Human Body Not Designed for Space Researchers Say

Message  gerardM le Mer 29 Jan - 19:00

Bonsoir à tous,

Message d'Amérique :

-> (en Anglais) Human Body Not Designed for Space Researchers Say
Dream of travelling to the moon? You may want to think otherwise because the human body is not designed for space travel, researchers say.

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In Space, Pee Is for Power

Message  gerardM le Lun 14 Avr - 20:25

Hi there.

-> (Science)
In Space, Pee Is for Power
(click pic or link to read article)

Urine is typically considered something to get rid of. But urine is largely water, and that’s a valuable resource in space. If a new process can be successfully scaled up from recent lab tests, future space travelers could more efficiently recycle their own urine to reclaim its water and make a little electrical power to boot.

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Man-made 'breathing' leaf is an oxygen factory for space travel

Message  gerardM le Mer 30 Juil - 0:10

Howdy.


Man-made 'breathing' leaf is an oxygen factory for space travel
(click pic to read article)

An artificial leaf converts water and light to oxygen, and that's good news for road-tripping to places beyond Earth.

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The Rosetta landing: Could the mysterious comet hold clues to the origin of life?

Message  MurielB le Mar 11 Nov - 20:46

https://ca.news.yahoo.com/blogs/geekquinox/the-rosetta-landing-could-the-mysterious-comet-explain-173740393.html

Rosetta represents not only the first attempt at a soft-landing onto the surface of a comet, but also the first time they will get a chance to touch and and taste one of these ancient objects believed to be remnants from the time the solar system was born.

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Re: space conquest

Message  MurielB le Ven 14 Nov - 11:29

Let's wait for other news but the landing was more complicated than expected
http://www.bbc.com/news/live/science-environment-29985988

The anchoring harpoons did not fire, and so they are not anchoring the lander to the surface.
"We still do not fully understand what has happened."

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Re: space conquest

Message  gerardM le Ven 14 Nov - 16:44

When things don't work properly, humans usually find clever solutions beyond expectations.

Remember Hubble: it was a drama as images were blury... solutions found gave us improved images far beyond the initial project; without the problems that were encountered, we wouldn't have discovered such wonders.
Right?

So many inventions go beyond imagination, following mistakes (blotting paper, penicillin, X-Rays), big unexpected problems (Hubble), etc.
Like in sports where athlets have to be mentally trained to ask for mad results, and dare, and overcome there fear, "normal" imagination of projects are never as ambitious as solutions to failed experience.

Negative outcome is not a problem, it's an opportunity so taht people can say "we don't have anything to lose".

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Re: space conquest

Message  MurielB le Ven 14 Nov - 21:40

very positive !

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Re: space conquest

Message  gerardM le Mar 18 Nov - 10:59


CNET

The hunt for lost lander Philae is gaining steam.


Fascinating Rosetta image captures Philae's comet bounce - CNET
The hunt for Rosetta's lost lander Philae is gaining steam as scientists pore over images from above the comet that may help reveal its final location.
CNET.CO

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Re: space conquest

Message  gerardM le Mer 19 Nov - 14:58


Scientific American magazine

Philae was sent all the way to a comet to do chemistry that can explain the origin of life. But what did it actually do for 60 hours?


What Philae Did During Its 60 Hours on a Comet
The simple reason why the lander was sent all the way to a comet was to do chemistry that can explain the origin of life

SCIENTIFICAMERICAN.COM|PAR MARK LORCH,THE CONVERSATION UK

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Re: space conquest

Message  gerardM le Mer 19 Nov - 23:57


Discovery News

COMET LANDER SNIFFS ORGANIC MOLECULES IN ATMOSPHERE: The Philae comet-lander has found traces of organic molecules on the surface of the comet 67P. What exactly did they find?


Comet Lander Sniffs Organic Molecules in Atmosphere : DNews
The Philae comet-lander has found traces of organic molecules on the surface of the comet 67P.
NEWS.DISCOVERY.COM

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Re: space conquest

Message  MurielB le Jeu 20 Nov - 22:18

Hi Gérard, everyone !
I see that we know more about comets. what about the universe origin ? I am looking forward to knowing that. are you ?

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Re: space conquest

Message  gerardM le Jeu 20 Nov - 23:26

Hi Muriel,
How to see what happened before light appeared (ie before 380,000 years after BB)?

NB: To me it's 380.000years (cf Wikipedia -> http://en.wikipedia.org/wiki/Chronology_of_the_universe )
There're articles speaking about 400Myears but I guess they're mistaken (eg NASA LOL http://jwst.nasa.gov/firstlight.html ).

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Re: space conquest

Message  MurielB le Ven 21 Nov - 21:49

Hi Gérard
20 000 years is such a short time ! Wink the mistake is not very big. By the way have you heard the comet's sound which was very impressive to me


Dernière édition par MurielB le Ven 21 Nov - 22:07, édité 2 fois

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Re: space conquest

Message  gerardM le Ven 21 Nov - 21:56

Muriel,

It's 380,000 years against 400,000,000 years.

> By the way have you heard the comet's sound which was very impressive to me
What the gell do you mean? Sound in vacuum?? scratch

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Re: space conquest

Message  MurielB le Ven 21 Nov - 22:09

Sorry for that mistake ! I am totally confused with huge numbers.
The Rosetta spacecraft and its Philae lander have a lot to teach scientists about what Comet 67P/Churyumov-Gerasimenko looks like, is composed of, and even what it smells like, but what does the comet sound like? The day before Philae made history by landing on the surface of the comet, ESA released an audio clip of 67P/C-G singing. Unfortunately, its song is creepy as hell and sounds a lot like Predator, the alien that tried to kill Arnold Schwarzenegger.

Of course, sound waves can’t travel through space, so it isn’t a direct audio recording. Instead, Rosetta’s Plasma Consortium (RPC) picked up variations in the magnetic field around the comet, due to interactions between 67P/C-G’s coma and the plasma from the Sun, better known as solar wind. These variations resulted in frequencies between 40 to 50 millihertz, about 10,000 times lower than can be detected by humans. ESA scientists altered the frequency of the comet’s song into human hearing range, and discovered it was a series of clicks that are very reminiscent of Predator’s growl.
http://www.iflscience.com/space/rosetta-s-comet-sounds-lot-predator
Gérard they have found what the comet smells like and also what it sounds like. You can listen for yourself !
Ok human ear can't hear it and ESA scientists altered the frequency of the comet's song into human hearing range.


Dernière édition par MurielB le Ven 21 Nov - 22:20, édité 1 fois

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Re: space conquest

Message  gerardM le Ven 21 Nov - 22:19

Muriel,

What you posted provided me with a Briton music.
I got another YouTube record.
As you could read, teh sound cannot be heard but was re-created.

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Re: space conquest

Message  MurielB le Ven 21 Nov - 22:21

Yes i have first posted the wrong video and I had to cancel it to post the right one which I find fascinating !


Dernière édition par MurielB le Ven 21 Nov - 22:34, édité 1 fois

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Re: space conquest

Message  MurielB le Ven 21 Nov - 22:29

The comet seems to be emitting a ‘song’ in the form of oscillations in the magnetic field in the comet’s environment. It is being sung at 40-50 millihertz, far below human hearing, which typically picks up sound between 20 Hz and 20 kHz. To make the music audible to the human ear, the frequencies have been increased by a factor of about 10,000.
http://blogs.esa.int/rosetta/2014/11/11/the-singing-comet/
Of course to make the music audible to the human ear, the frequencies have been increased by a factor of about 10.000. The scientists are excited because they didn't expect that.

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DNA Can Survive Reentry from Space

Message  gerardM le Sam 29 Nov - 0:16

Howdy.


Scientific American magazine
Now that scientists know DNA can survive a short spaceflight and reentry, what should the

DNA Can Survive Reentry from Space
Genetic blueprints attached to a rocket survived a short spaceflight and later passed on their biological instructions
SCIENTIFICAMERICAN.COM|PAR DINA FINE MARON
[/size]

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High-tech rooftop mirrors bounce sun's heat back into space

Message  gerardM le Ven 5 Déc - 22:51

Howdy.

CNET

A new super-thin film from Stanford University can keep buildings cooler and save energy by bouncing 97% of the sun's rays away.



High-tech rooftop mirrors bounce sun's heat back into space - CNET
Stanford researchers suggest a unique place to store excess heat -- the coldness of outer space -- which could help keep buildings cooler and help save energy.
CNET.CO

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America's Christmas lights are so bright you can see them from space

Message  gerardM le Ven 19 Déc - 10:31

Howdy.

News from Science

What do the holidays look like from outer space? Pretty bright! According to NASA, the intensity of light coming from urban areas in the US increases by 20% during December. Happy holidays!



America's Christmas lights are so bright you can see them from space
Satellites pick up holiday cheer around the country
NEWS.SCIENCEMAG.ORG

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Celebrate Hubble's 25th Anniversary in Space With These Awesome Photos

Message  gerardM le Ven 3 Avr - 15:06

Howdy.

National Geographic


Explore stunning celestial views from Hubble, the space telescope that expanded the frontiers of human knowledge.



Celebrate Hubble's 25th Anniversary in Space With These Awesome Photos
Pictures from the space telescope have dazzled us for 25 years.
NEWS.NATIONALGEOGRAPHIC.COM

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(New) Artificial Leaf Capable Of Producing Oxygen Could Make Living In Space A Reality!

Message  gerardM le Sam 19 Sep - 15:20

Howdy.

Staying Alive is Not Enough




(New) Artificial Leaf Capable Of Producing Oxygen Could Make Living In Space A Reality!
The man-made “plant” can create endless oxygen using light and water!
TRUEACTIVIST.COM

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