December 17, 2011
Milky Way above the Himalayas - Anton Jankovoy
submission from titanpersaeus

Milky Way above the Himalayas - Anton Jankovoy

submission from titanpersaeus

December 16, 2011
The collision between the Antennae galaxies, which are located about 62 million light-years from Earth, began more than 100 million years ago and is still occurring. Credit: NASA, ESA, SAO, CXC, JPL-Caltech, and STScI
submission from wisdomrising

The collision between the Antennae galaxies, which are located about 62 million light-years from Earth, began more than 100 million years ago and is still occurring. Credit: NASA, ESA, SAO, CXC, JPL-Caltech, and STScI

submission from wisdomrising

November 22, 2011
spaceweather.com
(submission from eatgeekstudy)

spaceweather.com

(submission from eatgeekstudy)

November 17, 2011
Orion above my hometown. 
Sande, Norway. 
(submission from questionlife)

Orion above my hometown. 

Sande, Norway. 

(submission from questionlife)

November 7, 2011
Early in the 20th century, GK Persei briefly became one of the brightest stars in planet Earth’s sky, an event known as Nova Persei 1901. Documented in this modern day composite of two images from 2003 and 2011 the ejecta from the explosion, popularly called the Firework Nebula, continues to expand into space. (via APOD: 2011 November 5 - GK Per: Nova of 1901)

Early in the 20th century, GK Persei briefly became one of the brightest stars in planet Earth’s sky, an event known as Nova Persei 1901. Documented in this modern day composite of two images from 2003 and 2011 the ejecta from the explosion, popularly called the Firework Nebula, continues to expand into space. (via APOD: 2011 November 5 - GK Per: Nova of 1901)

October 13, 2011
crab nebula again!

crab nebula again!

October 13, 2011
crab nebula!

crab nebula!

October 13, 2011
the ALMA telescope’s new view of the antennae galaxies, combined with data from the Hubble Space Telescope

the ALMA telescope’s new view of the antennae galaxies, combined with data from the Hubble Space Telescope

September 27, 2011

Although the northern lights display wasn’t at first visible to the naked eye, photographer P-M Hedén captured a faint green “aurorabow” in long-exposure pictures snapped September 9 from Vallentuna, 18.6 miles (30 kilometers) north of Stockholm, Sweden.
…
The composite picture shows not only the faint green aurora but also moonlit clouds, circular star trails, and the path of an airplane coming in for a landing at Stockholm-Arlanda Airport.

Although the northern lights display wasn’t at first visible to the naked eye, photographer P-M Hedén captured a faint green “aurorabow” in long-exposure pictures snapped September 9 from Vallentuna, 18.6 miles (30 kilometers) north of Stockholm, Sweden.

The composite picture shows not only the faint green aurora but also moonlit clouds, circular star trails, and the path of an airplane coming in for a landing at Stockholm-Arlanda Airport.

August 30, 2011

As seen in a recently released NASA/ESA Hubble Space Telescope picture, the galaxy NGC 2146 has one of its spiral arms bent at a 45-degree angle, so that the dense limb has looped in front of the galaxy’s core, as seen from Earth.
The most likely explanation is that the gravity of an unidentified nearby galaxy is disturbing NGC 2146’s arm, causing the galaxy to warp.

As seen in a recently released NASA/ESA Hubble Space Telescope picture, the galaxy NGC 2146 has one of its spiral arms bent at a 45-degree angle, so that the dense limb has looped in front of the galaxy’s core, as seen from Earth.

The most likely explanation is that the gravity of an unidentified nearby galaxy is disturbing NGC 2146’s arm, causing the galaxy to warp.

August 29, 2011

Star trails swirl through candy-colored auroras in a sweet new view of Sugar Lake in British Columbia, Canada, released this week.
Taken in July, the long-exposure picture illustrates how stars seem to rotate around what’s known as the celestial north pole, an imaginary point in the sky closest to the star Polaris—the dot of light at top left—that seems to intersect Earth’s axis of rotation.

Star trails swirl through candy-colored auroras in a sweet new view of Sugar Lake in British Columbia, Canada, released this week.

Taken in July, the long-exposure picture illustrates how stars seem to rotate around what’s known as the celestial north pole, an imaginary point in the sky closest to the star Polaris—the dot of light at top left—that seems to intersect Earth’s axis of rotation.

June 27, 2011
It’s the dim star, not the bright one, near the center of NGC 3132 that created this odd but beautiful planetary nebula. Nicknamed the Eight-Burst Nebula and the Southern Ring Nebula, the glowing gas originated in the outer layers of a star like our Sun. In this representative color picture, the hot blue pool of light seen surrounding this binary system is energized by the hot surface of the faint star. Although photographed to explore unusual symmetries, it’s the asymmetries that help make this planetary nebula so intriguing. Neither the unusual shape of the surrounding cooler shell nor the structure and placements of the cool filamentary dust lanes running across NGC 3132 are well understood.

It’s the dim star, not the bright one, near the center of NGC 3132 that created this odd but beautiful planetary nebula. Nicknamed the Eight-Burst Nebula and the Southern Ring Nebula, the glowing gas originated in the outer layers of a star like our Sun. In this representative color picture, the hot blue pool of light seen surrounding this binary system is energized by the hot surface of the faint star. Although photographed to explore unusual symmetries, it’s the asymmetries that help make this planetary nebula so intriguing. Neither the unusual shape of the surrounding cooler shell nor the structure and placements of the cool filamentary dust lanes running across NGC 3132 are well understood.

June 10, 2011
various planetary nebulae 

various planetary nebulae 

June 10, 2011
This Chandra image is of a region called “Lockman Hole North-west”, with sky area of ~ 0.5 degree by 0.5 degree, similar to the size of the Moon. The image clearly shows the X-ray sources exhibit lumpiness in the sky

This Chandra image is of a region called “Lockman Hole North-west”, with sky area of ~ 0.5 degree by 0.5 degree, similar to the size of the Moon. The image clearly shows the X-ray sources exhibit lumpiness in the sky

June 10, 2011
Reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. Reflection nebulae are also usually sites of star formation. They are usually blue because the scattering is more efficient for blue light. Reflection nebulae and emission nebulae are often seen together and are sometimes both referred to as diffuse nebulae. (NGC 7023 shown)

Reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. Reflection nebulae are also usually sites of star formation. They are usually blue because the scattering is more efficient for blue light. Reflection nebulae and emission nebulae are often seen together and are sometimes both referred to as diffuse nebulae. (NGC 7023 shown)