Astronomy news update from NASA : 
The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the red emission nebula in the center of the above photograph. The horse-head feature is dark because it is really an opaque dust cloud that lies in front of the bright red emission nebula. Like clouds in Earth's atmosphere, this cosmic cloud has assumed a recognizable shape by chance. After many thousands of years, the internal motions of the cloud will surely alter its appearance. The emission nebula's red color is caused by electrons recombining with protons to form hydrogen atoms. On the image left is the Flame Nebula, an orange-tinged nebula that also contains filaments of dark dust. Just to the lower left of the Horsehead nebula featured picture is a blueish reflection nebulae that preferentially reflects the blue light from nearby stars.
from NASA https://ift.tt/2AKR8av
via IFTTT
The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the red emission nebula in the center of the above photograph. The horse-head feature is dark because it is really an opaque dust cloud that lies in front of the bright red emission nebula. Like clouds in Earth's atmosphere, this cosmic cloud has assumed a recognizable shape by chance. After many thousands of years, the internal motions of the cloud will surely alter its appearance. The emission nebula's red color is caused by electrons recombining with protons to form hydrogen atoms. On the image left is the Flame Nebula, an orange-tinged nebula that also contains filaments of dark dust. Just to the lower left of the Horsehead nebula featured picture is a blueish reflection nebulae that preferentially reflects the blue light from nearby stars.
from NASA https://ift.tt/2AKR8av
via IFTTT
Our new 'Word Of The Day' article update : evert , v :
(transitive, often biology, physiology) To turn inside out (like a pocket being emptied) or outwards. (transitive, obsolete) To move (someone or something) out of the way. (transitive, obsolete, also figuratively) To turn upside down; to overturn. (transitive, intransitive, obsolete, also figuratively) To disrupt; to overthrow.
(transitive, often biology, physiology) To turn inside out (like a pocket being emptied) or outwards. (transitive, obsolete) To move (someone or something) out of the way. (transitive, obsolete, also figuratively) To turn upside down; to overturn. (transitive, intransitive, obsolete, also figuratively) To disrupt; to overthrow.
Astronomy news update from NASA : 
After sunset on October 3, some of the Solar System's largest moons stood low along the western horizon with the largest planet. Just after nightfall, a pairing of the Moon approaching first quarter phase and Jupiter was captured in this telephoto field of view. A blend of short and long exposures, it reveals the familiar face of our fair planet's own large natural satellite in stark sunlight and faint earthshine. At lower right are the ruling gas giant and its four Galilean moons. Left to right, the tiny pinpricks of light are Ganymede, [Jupiter], Io, Europa, and Callisto. Our own natural satellite appears to loom large because it's close, but Ganymede, Io, and Callisto are actually larger than Earth's Moon. Water world Europa is only slightly smaller. Of the Solar System's six largest planetary satellites, only Saturn's moon Titan, is missing from this scene. But be sure to check for large moons in your sky tonight.
from NASA https://ift.tt/31QTY9y
via IFTTT
After sunset on October 3, some of the Solar System's largest moons stood low along the western horizon with the largest planet. Just after nightfall, a pairing of the Moon approaching first quarter phase and Jupiter was captured in this telephoto field of view. A blend of short and long exposures, it reveals the familiar face of our fair planet's own large natural satellite in stark sunlight and faint earthshine. At lower right are the ruling gas giant and its four Galilean moons. Left to right, the tiny pinpricks of light are Ganymede, [Jupiter], Io, Europa, and Callisto. Our own natural satellite appears to loom large because it's close, but Ganymede, Io, and Callisto are actually larger than Earth's Moon. Water world Europa is only slightly smaller. Of the Solar System's six largest planetary satellites, only Saturn's moon Titan, is missing from this scene. But be sure to check for large moons in your sky tonight.
from NASA https://ift.tt/31QTY9y
via IFTTT
Our new 'Word Of The Day' article update : wh-question , n :
A question that is introduced by a wh-word (what, where, why, etc.) and cannot be answered by yes or no. Today is recognized by the United Nations as World Teachers’ Day to highlight the rights and responsibilities of teachers around the world.
A question that is introduced by a wh-word (what, where, why, etc.) and cannot be answered by yes or no. Today is recognized by the United Nations as World Teachers’ Day to highlight the rights and responsibilities of teachers around the world.
