These images from NASA's Spitzer Space Telescope of Comet ISON were taken on June 13, 2013, when ISON was 312 million miles (502 million kilometers) from the sun. The lefthand image shows a tail of fine rocky dust issuing from the comet, blown back by the pressure of sunlight. The image at right shows a neutral gas atmosphere surrounding ISON, likely created by carbon dioxide fizzing off the comet at a rate of 2.2 million pounds per day.
Comets- solar visitors that remind us we are a very small part of this universe. This one in 2007. Spectacular!
An annular eclipse is seen beside the Tokyo Sky Tree tower in Tokyo's Sumida Ward at 7:34 a.m.
Comet West - This photograph of Comet West, one of the greatest comets of all-time, was taken by amateur astronomer John Laborde. The picture shows the two distinct tails. The thin blue ion tail is made up of gases, while the broad white tail is made up of tiny dust particles.
The Trifid Nebula
Meteor Over Stonehedge, England
A Ghostly Trio from NASA's Spitzer Space Telescope - NASA Jet ...
寄り道してたので、軌道修正します。 しかし、試行錯誤中。。。 なので、いろいろあるです。 エロは無いっす。 基本、Re-Blog なしです。 写真ばかりで、ほとんど、 拾いものです。 「にゃんこ」と、「鉄」、「車」、 「飛行機」メインで、あとは、 自然・風景ものかな？ 最近、ダブリが多くて・・・ Always have your stuff when you need it with...
A recently discovered comet will make an uncomfortably-close planetary flyby next year — but this time it’s not Earth that's in the cosmic crosshairs. According to preliminary orbital prediction models, comet C/2013 A1 will buzz Mars on Oct. 19, 2014. The icy interloper is thought to originate from the Oort Cloud — a hypothetical region surrounding the solar system containing countless billions of cometary nuclei that were outcast from the primordial solar system billions of years ago.