mamebo:

N11
from APOD

mamebo:

N11

from APOD

astronomicalwonders:

NGC 1579, The Trifid of the North
image from: astrophotography gallery 
for more wonders of the universe follow: AstronomicalWonders.tumblr.com

astronomicalwonders:

NGC 1579, The Trifid of the North

image from: astrophotography gallery 

for more wonders of the universe follow: AstronomicalWonders.tumblr.com

spacettf:

NGC2174REDDet by J-P Metsavainio on Flickr.

spacettf:

NGC2174REDDet by J-P Metsavainio on Flickr.

submarinedreams:

What is the fate of our sun? These spectacular images from the Hubble Space Telescope offer us a clue. When a medium size star, such as the sun, nears the end of its life, it eventually uses up all of the hydrogen fuel in its core. This triggers some major changes in the star’s structure. The core, now made of helium, begins collapsing. It gets denser and denser and hotter and hotter until the helium begins fusing in a runaway thermonuclear reaction. The heat generated by the fusing helium fuses more helium in a vicious positive feedback loop. The blast from this reaction throws the outer layers of the star far out into space, ionizing and illuminating them, becoming a planetary nebula. Planetary nebulae come in an endless variety of shapes and sizes, because small differences in stellar structure and rotation can create major differences in the ejected cloud.

[Images Credit: NASAESA, and the Hubble Heritage Team (STScI/AURA)]

astronomicalwonders:

M51, the Whirlpool Galaxy
image from: astrophotography gallery 
for more wonders of the universe follow: AstronomicalWonders.tumblr.com

astronomicalwonders:

M51, the Whirlpool Galaxy

image from: astrophotography gallery 

for more wonders of the universe follow: AstronomicalWonders.tumblr.com

framesandflames:

Chandra captures Centaurus A
In this image, low-energy X-rays are colored red, intermediate-energy X-rays are green, and the highest-energy X-rays detected by Chandra are blue. The dark green and blue bands running almost perpendicular to the jet are dust lanes that absorb X-rays. This dust lane was created when Centaurus A merged with another galaxy perhaps 100 million years ago.
credit NASA/CXC/CfA/R.Kraft et al
Full Article

framesandflames:

Chandra captures Centaurus A

In this image, low-energy X-rays are colored red, intermediate-energy X-rays are green, and the highest-energy X-rays detected by Chandra are blue. The dark green and blue bands running almost perpendicular to the jet are dust lanes that absorb X-rays. This dust lane was created when Centaurus A merged with another galaxy perhaps 100 million years ago.

credit NASA/CXC/CfA/R.Kraft et al

Full Article
galaxyshmalaxy:

NGC896 (by Daniele Malleo)

galaxyshmalaxy:

NGC896 (by Daniele Malleo)

kosmonautica:

NGC 5189: An Unusually Complex Planetary Nebula 
When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere, sometimes a double lobe, and sometimes a ring or a helix. In the case of planetary nebula NGC 5189, however, no such simple structure has emerged. To help find out why, the Earth-orbiting Hubble Space Telescope recently observed NGC 5189 in great detail. Previous findings indicated the existence of multiple epochs of material outflow, including a recent one that created a bright but distorted torus running horizontally across image center. Results appear consistent with a hypothesis that the dying star is part of a binary star system with a precessing symmetry axis.

kosmonautica:

NGC 5189: An Unusually Complex Planetary Nebula 

When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere, sometimes a double lobe, and sometimes a ring or a helix. In the case of planetary nebula NGC 5189, however, no such simple structure has emerged. To help find out why, the Earth-orbiting Hubble Space Telescope recently observed NGC 5189 in great detail. Previous findings indicated the existence of multiple epochs of material outflow, including a recent one that created a bright but distorted torus running horizontally across image center. Results appear consistent with a hypothesis that the dying star is part of a binary star system with a precessing symmetry axis.

iliveinaspiralgalaxy:

Thor’s Helmet - NGC 2359 by Rolf Wahl Olsen on Flickr.

iliveinaspiralgalaxy:

Thor’s Helmet - NGC 2359 by Rolf Wahl Olsen on Flickr.