মঙ্গলবার, ৫ জুন, ২০১২

Planet Venus has put on a show for sky watchers by moving across the face of the Sun as viewed from Earth.

 SDO view of Venus

The transit was a very rare astronomical event that would not be seen again for another 105 years.
Observers in north and central America, and the northern-most parts of South America saw the transit begin just before local sunset. 

The far northwest of America, the Arctic, the western Pacific, and east Asia witnessed the entire passage.
The UK and Europe, the Middle East, and eastern African waited for local sunrise to see the closing stages of the transit. 

Venus appeared as a small black dot moving slowly but surely across the solar disc.
Special events provided safe ways for the public to see the transit 

Some of the best pictures of the event have been provided by the US space agency's (Nasa) Solar Dynamics Observatory, which studies the Sun from a position 36,000km above the Earth.
"We get to see Venus in exquisite detail because of SDO's spatial resolution," said astrophysicist Dr Lika Guhathakurta.

"SDO is a very special observatory. It takes images that are about 10 times better than a high-definition TV and those images are acquired at a temporal cadence of every 10 seconds. This is something we've never had before."

Many citizens keen to get a view of the transit themselves have been attending special events at universities and observatories where equipment for safe viewing has been set up. For others, internet streams have provided an easy way to follow Venus's slow trek.

Scientists have been observing the transit to test ideas that will help them probe Earth-like planets elsewhere in the galaxy, and to learn more about Venus itself and its complex atmosphere.

to read full news please go through the following link: 
http://www.bbc.co.uk/news/science-environment-17745366 

News Courtesy: BBC News

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