08 dezembro 2017

Stardust in Aries


This composition in stardust covers over 8 degrees on the northern sky. The mosaicked field of view is west of the familiar Pleiades star cluster, toward the zodiacal constellation Aries and the plane of our Milky Way Galaxy. At right in the deep skyscape is bluish Epsilon Arietis, a star visible to the naked-eye and about 330 light-years away. Reflecting starlight in the region, dusty nebulae LBN762, LBN753, and LBN743 sprawl left to right across the field, but are likely some 1,000 light-years away. At that estimated distance, the cosmic canvas is over 140 light-years across. Near the edge of a large molecular cloud, their dark interiors can hide newly formed stars and young stellar objects or protostars from prying optical telescopes. Collapsing due to self-gravity, the protostars form around dense cores embedded in the molecular cloud.

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On an uninhabited Caribbean island, archaeologists were amazed...



On an uninhabited Caribbean island, archaeologists were amazed to discover a series of cave drawings pre-dating European contact. This was a surprise because the drawings are so well-preserved. Over 70 winding caves on the island of Mona, between the Dominican Republic and Puerto Rico, contain art. Some are scratches on the rock. Others are more sophisticated, with paint made from sophisticated organic materials such as bat droppings, plant gums, minerals like iron, and materials from native trees like turpentine trees. The islanders were putting a lot of work into their art, deep where the light of day could not illuminate their creations.

The researchers noted that the indigenous people of Mona Island believed that the sun and moon emerged from beneath the ground. So exploring deep into the expansive network of subterranean caves, and making art there, is interpreted by today’s archaeologists as a highly spiritual act

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gamma–crucis: The Helix Nebula is a large planetary...











gamma–crucis:

The Helix Nebula is a large planetary nebula located in the constellation of Aquarius. Sometimes referred to as the “Eye of God”, it is one of the closest planetary nebula to Earth. 

Image Credit: NASA, ESO, ESA

nasa, astronomy
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gamma–crucis: Supernova Remnants Throughout the...













gamma–crucis:

Supernova Remnants Throughout the Cosmos 

Image Credit: NASA, ESO, ESA

nasa, astronomy
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Jonathan Swift, the Anglo-Irish author, invented the name “Vanessa.”

Jonathan Swift, the Anglo-Irish author, invented the name “Vanessa.”

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Retrospective: Moon


This false-color image composed of 15 images taken through three color filters by the Galileo spacecraft as it passed through the Earth-Moon system on Dec. 8, 1992.

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Visit –>...



Visit –> http://ift.tt/2yPz2E1 to check out a great topic for psychology teachers to explore with their students.

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gamma–crucis: The Carina Nebula is one of the largest...













gamma–crucis:

The Carina Nebula is one of the largest diffuse nebulae in the sky, and contains several open star clusters within it’s boundaries. Measuring at nearly four times the size of the Orion Nebula, it is located in the Southern region of the Sky. Inside lies Eta Carinae, a luminous hypergiant star with a mass ranging from 100 to 150 times that of out Sun, and four million times as bright. 

Image Credit: NASA, ESA, ESO

nasa, astronomy
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gamma–crucis: The Eagle Nebula is a region of star...











gamma–crucis:

The Eagle Nebula is a region of star formation, ranging at about 90 trillion kilometers long. To put to scale, that’s the equivalent of approximately 2,250,000,000 Earth’s. One of the large regions inside of the nebula is a star forming region referred to as “The Pillars of Creation” (seen above), which evidence suggests may have already been destroyed by a supernova that exploded some eight to nine thousand years ago. However, the light from this massive event will not reach Earth for another millennium. 

Image Credit: NASA, ESO, ESA

nasa, astronomy
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