nsx: 今日、土星が衝(太陽-地球-惑星と並ぶ状態)となり、南の空で観望の好機を迎えています。すばる望遠鏡も先月、土星を赤外線…



nsx:

astronomyblog: Galaxy Cluster Abell 1689 This image shows…



astronomyblog:

Galaxy Cluster Abell 1689

This image shows the galaxy cluster Abell 1689, with the mass distribution of the dark matter in the gravitational lens overlaid (in purple). The mass in this lens is made up partly of normal (baryonic) matter and partly of dark matter. Distorted galaxies are clearly visible around the edges of the gravitational lens. The appearance of these distorted galaxies depends on the distribution of matter in the lens and on the relative geometry of the lens and the distant galaxies, as well as on the effect of dark energy on the geometry of the Universe.

Credit: NASA / ESA

sixpenceee: Pure black roses do exist. The roses appear to be…









sixpenceee:

Pure black roses do exist. The roses appear to be completely black, with the signature green stem. Called the Turkish Halfeti Rose, they only grow in exceptionally small numbers in the village of Halfeti, Turkey

The local Turks seem to enjoy a love-hate relationship with these rare blossoms. They consider the flowers to be symbols of mystery, hope and passion, and also death and bad news. Unfortunately, the black roses of Halfeti are an endangered species. They have been under threat of extinction ever since the residents of the village moved from ‘old Halfeti’ in the 1990s, when the Birecik Dam was constructed.

phdonohue: Never Built: Los Angeles Pereira and Luckman’s 1952…



phdonohue:

Never Built: Los Angeles

Pereira and Luckman’s 1952 design for Los Angeles International Airport (LAX) called for a glass-enclosed central terminal, with a world map etched on the central column. Their original plan died because the city’s Building Department found it too radical, the cost of air-conditioning would have been exorbitant and the airlines wanted their own individual terminals.