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distant-traveller:

A bubbling galactic center

What’s happening in the center of this galaxy? Close inspection of the center of NGC 4438, as visible in this recently released representative-color image by the Hubble Space Telescope, reveals an unusual bubble of hot gas, colored in red. Astronomers speculate that this strange bubble was created by a massive central black hole that resides there. As gas swirls around the black hole, gravity and friction pull it in and heat it up. Some of the hot gas then falls into the black hole, but not all - some gas gets so hot it shoots out the poles in fast jets. When these jets impact nearby material, they heat it up and cause the detected glow. Galaxy NGC 4438 resides about 50 million light years from Earth, and the pictured central bubble measures about 800 light-years across.

Image credit: Jeffrey Kenney (Yale) et al., WFPC2, HST NASA
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kenobi-wan-obi:


Milky Way Shows 84 Million Stars in 9 Billion Pixels
Side Note: The two images shown above are mere crop outs from ESA’s recent hit: The 9 Billion Pixel Image of 84 Million Stars. These two focus on the bright center of the image for the purpose of highlighting what a peak at 84,000,000 stars looks like.
Astronomers at the European Southern Observatory’s Paranal Observatory in Chile have released a breathtaking new photograph showing the central area of our Milky Way galaxy. The photograph shows a whopping 84 million stars in an image measuring 108500×81500, which contains nearly 9 billion pixels.
It’s actually a composite of thousands of individual photographs shot with the observatory’s VISTA survey telescope, the same camera that captured the amazing 55-hour exposure. Three different infrared filters were used to capture the different details present in the final image.
The VISTA’s camera is sensitive to infrared light, which allows its vision to pierce through much of the space dust that blocks the view of ordinary optical telescope/camera systems.
source
kenobi-wan-obi:


Milky Way Shows 84 Million Stars in 9 Billion Pixels
Side Note: The two images shown above are mere crop outs from ESA’s recent hit: The 9 Billion Pixel Image of 84 Million Stars. These two focus on the bright center of the image for the purpose of highlighting what a peak at 84,000,000 stars looks like.
Astronomers at the European Southern Observatory’s Paranal Observatory in Chile have released a breathtaking new photograph showing the central area of our Milky Way galaxy. The photograph shows a whopping 84 million stars in an image measuring 108500×81500, which contains nearly 9 billion pixels.
It’s actually a composite of thousands of individual photographs shot with the observatory’s VISTA survey telescope, the same camera that captured the amazing 55-hour exposure. Three different infrared filters were used to capture the different details present in the final image.
The VISTA’s camera is sensitive to infrared light, which allows its vision to pierce through much of the space dust that blocks the view of ordinary optical telescope/camera systems.
source
guardian:


Black hole bonanza in ‘next door’ Andromeda galaxy.
Twenty-six new black hole candidates have been discovered in the neighbouring Andromeda galaxy. According to the astronomers involved, these could be just the tip of the iceberg. Details of the find will be published in the 20 June issue of The Astrophysical Journal.
Photograph: Dimitar Todorov/Alamy
kenobi-wan-obi:


NGC 3628 by Alessandro Falesiedi
distant-traveller:

Gamma Cygni region
Image credit: astrochuck, on Flickr
animals-riding-animals:

raccoon riding dog
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themagicfarawayttree:

Copper Replacement Agate.
fuckyeahcrystals:

Tourmaline.
Tourmaline is a piezoelectric material. Piezoelectrics generate a voltage  when compressed along a perpendicular direction. Materials optimized for these properties are commonly used in sensors, scales, speakers, motors, and microscopes.
mineralists:

Double terminated Rhodochrosite and Silver. Very neat!Uchucchacua Mine, Peru
ak47:

sutekinauso:

ug:

bornite (via carlybird)