Like all comets, ISON is a clump of frozen gases mixed with dust. Often described as "dirty snowballs," comets emit gas and dust whenever they venture near enough to the sun as that icy material transforms from a solid to a gas, a process known as sublimation. Jets powered by sublimating ice also release dust, which reflect sunlight and brightens the overall look of the comet in the sky.
In late November 2013, its icy material will sublimate and release large quantities of dust as the surface erodes under the sun's immense solar heat. During this time, the comet may become bright enough to admire with little to no astronomy training and could potentially be viewable for star-watching in the Northern hemisphere during the day.
Comet ISON is believed to be making its first trip to the sun, and so it is hoped to still have most of its volatiles intact. Volatiles are the substances which heat up and blast off the comet's nucleus to form the wispy comet tail which can stretch for millions of miles through space.
Watch the SpaceRip video here: ISON - Comet of the Century
Read more about ISON here: http://www.nasa.gov/mission_pages/asteroids/news/asteroid20130205.html
#NASA #Penny4NASA #Space #Comet #Astronomy
When the night falls hard onto the city’s shoulders and the sky drapes a dark blanket over the skyscrapers and buildings, it’s hard to contain the effervescent charm that bursts forth after the sun has retreated.
This is the Queensboro Bridge which is known by a few other names depending on where you are from and how long you have lived in New York City. Despite growing up in Queens, I will always think of this bridge as the 59th Street Bridge because I think I belonged to one of the few families in Queens that for whatever reason associated the bridge more with 59th Street in Manhattan. It’s also known as Queens Bridge which is a shortened form of Queensboro Bridge. Its current official name is the Ed Koch Queensboro Bridge, named after the now deceased former mayor of New York City who held office from the late 70s to the early 80s. He was definitely a “character” (as we say ;) ).
The vantage point is from Roosevelt Island and this is the result of a 30 second exposure taken with the Sony A99. It was taken on a bitterly cold night in the beginning of March (you can tell how rough the wind was by the roughness of the water despite the long exposure time) while I was having a spirited conversation with one of the Roosevelt Island security guards regarding the abandoned smallpox hospital further down the island. I tend to love to shoot long exposures alone but it was great to have the company (and quirky conversation) that night. It’s those type of moments that make me love the city: little bursts of spontaneity and brevity while watching the lights sparkle in the city’s eyes.
You can view this post along with all relevant links over at my photography blog here:
Tags: #photography #newyorkcity #nyc #nycphotography #nycskyline #nycphoto #newyorkcityphotography #newyorkphoto #longexposure #nycnight #city #cityscape #urban #cityphotography #newyorknight #nycnight #59thstreetbridge #bridge #citylights
- Orphic CloudArtistI make the pictures, art, music, and whatever is needed for the Android Apps my brother writes.
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