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Space Pics v.3

#241
MarsStreaks_HiRise_1080.jpg


Seasonal Streaks Point to Recent Flowing Water on Mars

What creates these changing streaks on Mars? Called Recurring Slope Linea (RSL), these dark features start on the slopes of hills and craters but don't usually extend to the bottom. What's even more unusual is that these streaks appear to change with the season, appearing fresh and growing during warm weather and disappearing during the winter. After much study, including a recent chemical analyses, a leading hypothesis has emerged that these streaks are likely created by new occurrences of liquid salty water that evaporates as it flows. The source for the briny water is still unclear, with two possibilities being condensation from the Martian atmosphere and underground reservoirs. An exciting inference is that if these briny flows are not too salty, they may be able to support microbial life on Mars even today. The featured image of a hill inside Horowitz Crater was investigated by instruments aboard the robotic Mars Reconnaissance Orbiter that has been returning data from Mars since 2006.

Image Credit: NASA, JPL, U. Arizona
 
#242
gendlerM83-New-HST-ESO-S1024.jpg


M83: The Thousand-Ruby Galaxy

Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra. Prominent spiral arms traced by dark dust lanes and blue star clusters lend this galaxy its popular name, The Southern Pinwheel. But reddish star forming regions that dot the sweeping arms highlighted in this sparkling color composite also suggest another nickname, The Thousand-Ruby Galaxy. About 40,000 light-years across, M83 is a member of a group of galaxies that includes active galaxy Centaurus A. In fact, the core of M83 itself is bright at x-ray energies, showing a high concentration of neutron stars and black holes left from an intense burst of star formation. This sharp composite color image also features spiky foreground Milky Way stars and distant background galaxies. The image data was taken from the Subaru Telescope, the European Southern Observatory's Wide Field Imager camera, and the Hubble Legacy Archive.

Image Credit: Subaru Telescope (NAOJ), Hubble Space Telescope,
European Southern Observatory - Processing & Copyright: Robert Gendler
 
#245
PerseusCloud_hilborn1024.jpg


Stardust in Perseus

This cosmic expanse of dust, gas, and stars covers some 6 degrees on the sky in the heroic constellation Perseus. At upper left in the gorgeous skyscape is the intriguing young star cluster IC 348 and neighboring Flying Ghost Nebula. At right, another active star forming region NGC 1333 is connected by dark and dusty tendrils on the outskirts of the giant Perseus Molecular Cloud, about 850 light-years away. Other dusty nebulae are scattered around the field of view, along with the faint reddish glow of hydrogen gas. In fact, the cosmic dust tends to hide the newly formed stars and young stellar objects or protostars from prying optical telescopes. Collapsing due to self-gravity, the protostars form from the dense cores embedded in the dusty molecular cloud. At the molecular cloud's estimated distance, this field of view would span almost 90 light-years.

Image Credit & Copyright: Lynn Hilborn
 
#253
NGC7497_Coles_960.jpg


Galaxy, Stars, and Dust

Is this galaxy trapped in a web of dust? No -- it is far in the background. However, spiky stars and spooky shapes are abound in this deep cosmic skyscape. Its well-composed field of view covers about a Full Moon on the sky toward the constellation Pegasus. Of course the brighter stars show diffraction spikes, the commonly seen effect of internal supports in reflecting telescopes, and lie well within our own Milky Way galaxy. The faint but pervasive clouds of interstellar dust ride above the galactic plane and dimly reflect the Milky Way's combined starlight. Known as high latitude cirrus or integrated flux nebulae they are associated with molecular clouds. In this case, the diffuse cloud cataloged as MBM 54, less than a thousand light-years distant, fills the scene. The galaxy seemingly tangled in the dust is the striking spiral galaxy NGC 7497 some 60 million light-years away. Seen almost edge-on near the center of the field, NGC 7497's own spiral arms and dust lanes echo the colors of the Milky Way's stars and dust.

Image Credit & Copyright: Eric Coles and Mel Helm
 
#254
Captainkangaroo said:
PerseusCloud_hilborn1024.jpg


Stardust in Perseus

This cosmic expanse of dust, gas, and stars covers some 6 degrees on the sky in the heroic constellation Perseus. At upper left in the gorgeous skyscape is the intriguing young star cluster IC 348 and neighboring Flying Ghost Nebula. At right, another active star forming region NGC 1333 is connected by dark and dusty tendrils on the outskirts of the giant Perseus Molecular Cloud, about 850 light-years away. Other dusty nebulae are scattered around the field of view, along with the faint reddish glow of hydrogen gas. In fact, the cosmic dust tends to hide the newly formed stars and young stellar objects or protostars from prying optical telescopes. Collapsing due to self-gravity, the protostars form from the dense cores embedded in the dusty molecular cloud. At the molecular cloud's estimated distance, this field of view would span almost 90 light-years.

Image Credit & Copyright: Lynn Hilborn
Click to expand...

I have to say the face in this one is kind of spooky
 
#255
View attachment 1101

The Final Exit
Pin It Credit: ESA/Hubble & NASA; Acknowledgement: Serge Meunie
Wednesday, Oct. 7, 2015: This planetary nebula PK 329-02.2 (AKA Menzel 2, or Mz 2) lies in the constellation of Norma in the southern sky. Planetary nebulas arise when sun-like stars reach the ends of their lives, and blow their outer layers of gas into space before the final stage of becoming a white dwarf. Menzel 2 shows a winding blue cloud with two stars at its exact center. Astronomers determined that the star at upper right is the central star of the nebula, and the other star to the lower left is probably the central star’s true physical companion. Image released Oct. 5, 2015.

— Tom Chao
 
#256
ElephantTrunk_Canonne_960.jpg


The Elephant's Trunk in IC 1396

Like an illustration in a galactic Just So Story, the Elephant's Trunk Nebula winds through the emission nebula and young star cluster complex IC 1396, in the high and far off constellation of Cepheus. Of course, the cosmic elephant's trunk is over 20 light-years long. This composite was recorded through narrow band filters that transmit the light from ionized hydrogen, sulfur, and oxygen atoms in the region. The resulting image highlights the bright swept-back ridges that outline pockets of cool interstellar dust and gas. Such embedded, dark, tendril-shaped clouds contain the raw material for star formation and hide protostars within the obscuring cosmic dust. Nearly 3,000 light-years distant, the relatively faint IC 1396 complex covers a large region on the sky, spanning over 5 degrees.


Image Credit & Copyright: J.C. Canonne, P. Bernhard, D. Chaplain & L. Bourgon
 
#258
NGC7497_Coles_960.jpg



Galaxy, Stars, and Dust

Is this galaxy trapped in a web of dust? No -- it is far in the background. However, spiky stars and spooky shapes are abound in this deep cosmic skyscape. Its well-composed field of view covers about a Full Moon on the sky toward the constellation Pegasus. Of course the brighter stars show diffraction spikes, the commonly seen effect of internal supports in reflecting telescopes, and lie well within our own Milky Way galaxy. The faint but pervasive clouds of interstellar dust ride above the galactic plane and dimly reflect the Milky Way's combined starlight. Known as high latitude cirrus or integrated flux nebulae they are associated with molecular clouds. In this case, the diffuse cloud cataloged as MBM 54, less than a thousand light-years distant, fills the scene. The galaxy seemingly tangled in the dust is the striking spiral galaxy NGC 7497 some 60 million light-years away. Seen almost edge-on near the center of the field, NGC 7497's own spiral arms and dust lanes echo the colors of the Milky Way's stars and dust.

Image Credit & Copyright: Eric Coles and Mel Helm
 
#260
NASA shows off new 4K views of Jupiter

New images of Jupiter captured by the Hubble Space Telescope reveal details never seen before, including a newly identifiable filament in the "Great Red Spot" — a hurricane bigger than the size of three Earths that has raged for hundreds of years on the massive planet. The images were released on the website for NASA's Goddard Spaceflight Center.

NASA scientists also used the images to create a 4K video of the planet's rotation. It's part of the agency's ongoing effort to release more UHD footage on both YouTube and its new dedicated 4K television channel, which was announced last month.
Code: 
https://youtu.be/3afEX8a2jPg
 
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