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Tiziana Gibellini

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M2-9: Wings of a Butterfly Nebula
Image Credit: Hubble Legacy Archive, NASA, ESA - Processing: Judy Schmidt

Explanation: Are stars better appreciated for their art after they die? Actually, stars usually create their most artistic displays as they die. In the case of low-mass stars like our Sun and M2-9 pictured above, the stars transform themselves from normal stars to white dwarfs by casting off their outer gaseous envelopes. The expended gas frequently forms an impressive display called a planetary nebula that fades gradually over thousands of years. M2-9, a butterfly planetary nebula 2100 light-years away shown in representative colors, has wings that tell a strange but incomplete tale. In the center, two stars orbit inside a gaseous disk 10 times the orbit of Pluto. The expelled envelope of the dying star breaks out from the disk creating the bipolar appearance. Much remains unknown about the physical processes that cause planetary nebulae. 
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Angel Butafly's profile photo
 
They r truly majestic as they die! 
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Xārm Nạksū̂

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Spiral galaxy M51 (NGC 5194), The Whirlpool Galaxy, displays its long arms which consist of stars and gas laced with dust arranged in long lanes. NGC 5195, the small, yellowish galaxy to the right, appears to tug on one of the Whirlpool's arms, but NGC 5195 actually floats behind the Whirlpool. 
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Krystia Olsen's profile photoDiana Binavince's profile photo
3 comments
 
Terrific views amazing....
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Fred Herrmann

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Hind’s Variable Nebula in Taurus.

Want to learn how I process my images the quick and easy way? If you do, please read my new book "Astrophotography, Just the Facts!" Why spend hours searching the internet trying to decide which way is the "right" way to process images? This book gets straight to the meat of PixInsight and Photoshop. A concise step by step tutorial which is easily completed in a few evenings.

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Want to learn how to locate celestial objects using free planetarium software? Not sure which telescope is best for you? If so consider my "Astronomy for Everyone" companion book which teaches you the basics of the how, where and when of locating celestial objects in the night sky. It also provides a guide as to which telescope you should consider buying, how the optics work and what you can expect to see.

Available on Amazon at: http://tinyurl.com/ztgwrob

Both books are available on Amazon, iBooks, Barnes&Nobel and other outlets.
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Xārm Nạksū̂

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Well-known astronomer Adam Block of the Mount Lemmon SkyCenter at the University of Arizona captured reflection nebula NGC 1977, AKA the “Running Man Nebula.” It lies in the constellation of Orion, about 1,500 light years from Earth.

On Facebook, Block wrote: “The mixing of gas and dust, especially towards the bottom of the frame, is particularly mesmerizing. This is a new interpretation of a famous nebula. Be certain to click and see the largest version of the image which ultimately displays the finest resolution and hopefully gives a sense of depth (with brownish dust clouds in the foreground, blue scattered light more in the middle and the bright red glow coming from deep within the nebula). Enjoy this first image of the year and I hope you agree it is one that clearly communicates that I hope to hit the ground 'running' with more to follow.” http://goo.gl/m61Y7W
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Emily Byron's profile photo
 
Absolutely stunning
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christine ford

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NASA will use this data for a number of Earth science applications, including dust and volcanic ash maps of the entire planet.
On July 20, 2015, NASA released to the world the first image of the sunlit side of Earth captured by the space agency’s EPIC camera on NOAA’s DSCOVR...
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Tiziana Gibellini

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An Orion mosaic

Tom Diana from Houston, Minnesota
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Yara Almosa's profile photokeyno butler's profile photo
2 comments
 
How small are we? 
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Samuel Wallace

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In the wake of the 47th anniversary of Apollo 11, I will make a point that every photo taken on Apollo 11, (And all of the other missions as well) was made by a company called Hasselblad, and thus, when National Geographic first wrote about Apollo 11 in December of that year, Hasselblad had a 22-paragraph essay on the moon camera. So when you look at all of the photos from the Apollo missions, remember the days when a 22 paragraph ad was legitimate.
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Thomas Wildoner

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A View of the Planet Mars on July 19, 2016
I wheeled out the telescope on July 19, 2016 to grab some videos of the planet Mars – I’m still learning the processing technique of planetary imaging. This image of Mars is the best 20% of 5,000 …
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Thomas Wildoner's profile photoRugal 77777's profile photo
3 comments
 
I think that following the type of twinkle or glitter we could undertand that life forms, in fields we don't know, are existing on stars or planets... «life enlight the stars». And Mars color changing could be explained by a life form always in power : tinkles mean that life is repeatedly jumping, and stars or planets that shine like a lighthouse would mean that life is running and always in power from where it comes from... following thoose phenomenons we could even know what kind of matrix life develop in the universe... for example humans in power are always jumping repeatedly and all life forms have a specific kind of diffusion.
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Tiziana Gibellini

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The peculiar galaxy Centaurus A

Harel Boren from Givat Shmuel, Israel
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Audrey Patton's profile photo
 
Gas emitted by a galactic explosion? A wonder.

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ScienceHook

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Messier78 Nebula <3
Credit: Hubble Space Telescope
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Robin Potter's profile photo
 
Wondrous universe
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Tiziana Gibellini

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The Gamma Cygni and Crescent nebulae

Terry Hancock from Fremont, Michigan
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Frank Summers

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Foto Friday: the classic spiral of the Whirlpool Galaxy (Messier 51). This image at full resolution is over 91 million pixels of galactic beauty!

The spiral arms showcase the dark dust lanes where gas clouds collapse to form stars, the red nebulae heated by those newly born stars, and the bright blue star clusters of young stars. It highlights that star formation is widespread across the spiral arms of these galaxies.

Also take note of the companion galaxy on the right, which is behind the Whirlpool from our point of view. The gravity of this smaller galaxy is interacting with the matter in the larger galaxy's disk and may be enhancing the resonances that create the striking spiral pattern.

Credit: NASA, ESA, S. Beckwith (STScI), and The Hubble Heritage Team (STScI/AURA)

http://hubblesite.org/newscenter/archive/releases/2005/12/image/a/
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Thomas Nitsch's profile photo
 
Ist ein sehr schönes Foto von der Spiralgalaxie.
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Hamamatsu Corporation

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NASA’s Astro #PictureOfTheDay: NGC 2736 “The Pencil Nebula" http://go.nasa.gov/2ah4hhg #APOD  
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Thomas Wildoner

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The Messier Objects of the Sagittarius Star Cloud Region
Here is an early morning view of the Sagittarius star cloud region of the constellation Sagittarius I photographed back in May 2016. The field of view contains five Messier objects including the Om…
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Gary Rogers's profile photo
2 comments
 
Cool pic though
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Adrian Heng

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Fast expanding gas clouds mark the end for a central star in the Rotten Egg Nebula, located about 5000 light-years away toward the constellation of Puppis. The once-normal star has run out of nuclear fuel, causing the central regions to contract into a white dwarf causing the outer envelope of the star to expand. As the million-kilometre per hour gas rams into the surrounding interstellar gas, a supersonic shock front forms where ionised hydrogen and nitrogen glow blue.

This 3D computer animation was created by the very talented people at Nebula Bliss based on images taken by the Hubble telescope.

Image & Text Credit: NASA, ESA.
3D Image Credit: Nebula Bliss, Amith Lankesar, Eugene Grachev.
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Steve Clayton's profile photo
7 comments
 
Thank you for this post. Excellent imaging and information! 
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Star Name Registry

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This is the Waterfall Nebula – also called HH-222 – is located approximately 1,500 light years away from Earth in the Orion Molecular Cloud. The process of it’s formation remains a mystery. One theory is that the nebula is the result of stellar winds blowing from a young star which is hidden nearby.

Credit: NASA
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Jeremey Paul's profile photo
 
Majestic Looking Star.
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Moez &

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Messier 106. Composite of IR, x-ray, radio and visible light view (X-ray - blue, Optical - gold, IR - red, Radio - purple)
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Priyanka S

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NASA’s Hubble Telescope Makes First Atmospheric Study of Earth-Sized Exoplanets

Using NASA's Hubble Space Telescope scientists have conducted a first search for atmospheres around the Earth-sized planets TRAPPIST-1b and TRAPPIST-1c. They are located in the constellation of Aquarius (The water-carrieer, https://goo.gl/Fs3kFq), about 40 light-years away from Earth and orbit a red dwarf star (https://goo.gl/H28JSH). They discovered that those planets most likely don't have dense hydrogen-dominated atmospheres usually found on gaseous worlds.

"The lack of a smothering hydrogen-helium envelope increases the chances for habitability on these planets," said team member Nikole Lewis of the Space Telescope Science Institute (STScI) in Baltimore, Maryland. "If they had a significant hydrogen-helium envelope, there is no chance that either one of them could potentially support life because the dense atmosphere would act like a greenhouse."

Read the full story here:
http://hubblesite.org/newscenter/archive/releases/2016/27/full/

Video: Hubble Makes First Measurements of Earth-Sized Exoplanet Atmospheres
https://youtu.be/9XV0UE5Gb_Y

What is an exoplanet?
https://en.wikipedia.org/wiki/Exoplanet

How do we detect exoplanets?

If you have seven minutes and would like an easy and interesting explanation of different techniques (Doppler Technique, Direct Imaging, Light Curves, Transit Timing Variations, Microlensing) to detect planets in other star systems take a look at this video:
https://youtu.be/zFPnOUSdMdc

Image credit: This illustration shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our sun. The planets, TRAPPIST-1b and TRAPPIST-1c, are between 20 and 100 times closer to their star than Earth is to the sun. Illustration: NASA, ESA, and G. Bacon (STScI); Science: NASA, ESA, and J. de Wit (MIT) http://goo.gl/2x0WWt

Thank you for your interest in this Astronomy/Astrophysics collection. Maybe add me on Google+ (+Pierre Markuse) and Twitter (https://twitter.com/Pierre_Markuse) or have a look at the Space/Space Technology collection here: https://goo.gl/5KP0wx 

#science   #astronomy   #astrophysics   #exoplanets   #hubble   #hst   #trappist1b   #trappist1c   #trappist   #eso   #atmosphere  
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John muleiro's profile photo
2 comments
 
Like mercury and venus 
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