Showing posts with label Milk Way. Show all posts
Showing posts with label Milk Way. Show all posts

Saturday, March 7, 2015

FANTASTIC ALMA Milky Way

ALMA Milky Way: APOD: 2014 July 24 - ALMA Milky Way


Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2014 July 24


See Explanation. Clicking on the picture will download the highest resolution version available.
Explanation: This alluring all-skyscape was taken 5,100 meters above sea level, from the Chajnantor Plateau in the Chilean Andes. Viewed through the site's rarefied atmosphere at about 50% sea level pressure, the gorgeous Milky Way stretches through the scene. Its cosmic rifts of dust, stars, and nebulae are joined by Venus, a brilliant morning star immersed in a strong band of predawn Zodiacal light. Still not completely dark even at this high altitude, the night sky's greenish cast is due to airglow emission from oxygen atoms. Around the horizon the dish antenna units of the Atacama Large Millimeter/submillimeter Array, ALMA, explore the universe at wavelengths over 1,000 times longer than visible light.

Wednesday, February 25, 2015

Aurora and Milky Way in a Little Sky

Aurora and Milky Way in a Little Sky: APOD: 2014 October 3 - Aurora and Milky Way in a Little Sky


Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2014 October 3


See Explanation. Clicking on the picture will download the highest resolution version available.
Explanation: Stepping stones seem to lead to the Milky Way as it stretches across this little sky. Of course, the scene is really the northern hemisphere's autumnal equinox night. Water and sky are inverted by a top to bottom, around the horizon stereographic projection centered on the zenith above Lake Storsjön in Jämtland, Sweden. In the north the Milky Way arcs from east to west overhead as fall begins, but the season is also a good time for viewing aurora. Geomagnetic storms increase in frequency near the equinox and produce remarkable displays of northern lights at high latitudes, like the eerie greenish glow reflected in this watery cosmos.

Tuesday, February 24, 2015

The Milky Way Over the Arizona Toadstools

The Milky Way Over the Arizona Toadstools:

ToadSky_Lane_1080.jpg
The Milky Way Over the Arizona Toadstools