Image of the Day…Comet 67p as Captured by Rosetta Spacecraft !!!

Rosetta’s comet is spouting jets

Wow! The Rosetta spacecraft is now seeing jets from Comet 67P/Churyumov-Gerasimenko, as the comet draws in closer to the sun.

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As Comet 67P/Churyumov-Gerasimenko gets closer to the sun, it’s becoming more active. The European Space Agency’s Rosetta spacecraft – which has been flying in tandem with the comet since August 6 – captured the images to make the above montage on September 26, 2014, when Rosetta was 16 miles (26 kilometers) from the comet. The montage shows jets of dust and gas escaping from the neck of 67P/C-G.
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Rosetta spent 10 years on a deep-space chase of this comet, which will reach its perihelion, closest point to the sun, in July 2015.

This November, the Rosetta spacecraft will send a probe down to land on the surface of this active comet!

Posted by   in earth sky news

Natarajan

Image of the Day… This Date in Science…Launch Of SPUTNIK…

This date in science: Launch of Sputnik

Sputnik’s unassuming beep was a symbol not only of Russia’s remarkable accomplishment, but also of what many believed was Soviet superiority in space.

October 4, 1957. On this date, the Soviet Union launched Sputnik I, the first artificial satellite to orbit the Earth. According to many space historians, the Space Age began on this date.

It was a polished metal sphere, made of aluminum alloy. It was 58 centimeters (23 inches) in diameter – about the size of a beach ball – and weighed just 184 pounds. Its four external radio antennae were meant to broadcast radio pulses. And broadcast they did. For 21 days in 1957, people around the globe heard Sputnik’s unassuming beep beep on the radio.

Photo credit: NASA

The pressurized sphere had five primary science objectives: test a process for placing an artificial “moon” into Earth orbit; provide information on the density of Earth’s atmosphere, calculated from Sputnik’s lifetime in orbit; test radio and optical methods of orbital tracking; determine the effects of radio wave propagation though Earth’s atmosphere; and check principles of pressurization that could be used on Earth-orbiting satellites. Clearly, the next step was to place living things in space.

Sputnik’s beeping was a symbol not only of Soviet Russia’s remarkable accomplishment, but also of what many immediately assumed was Russia’s superiority in space. The American public feared that the Soviets’ ability to launch satellites also translated into the capability to launch ballistic missiles that could carry nuclear weapons from Europe to the U.S.

This historic image shows a technician putting the finishing touches on Sputnik 1, humanity's first artificial satellite. The pressurized sphere made of aluminum alloy had five primary scientific objectives: Test the method of placing an artificial satellite into Earth orbit; provide information on the density of the atmosphere by calculating its lifetime in orbit; test radio and optical methods of orbital tracking; determine the effects of radio wave propagation though the atmosphere; and, check principles of pressurization used on the satellites.  Image Credit: NASA/Asif A. Siddiqi

Then the Soviets struck again. On November 3, 1957, they launched Sputnik II, this time carrying a much heavier payload, including a dog named Laika.

Sputnik I and Sputnik II sent shockwaves around the world. American political leadership scrambled to catch up. Ultimately, that extra push resulted in the United States sending the first astronauts to walk on the moon, on July 20, 1969.

Bottom line: On October 4, 1957, the Soviet Union launched the Sputnik 1 satellite into Earth orbit, and the Space Age began.

SOURCE::::: earth sky news

Natarajan

 

Sky…. Why it is Blue ?

Why Is The Sky Blue?

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Barring cloudy days (along with both sunsets and sunrises), the sky will usually appear to be blue. This happens because of the way certain things can manipulate light. Just as prisms can bend light to create a rainbow and a mirror can reflect light back to where it came from, some objects can scatter light. The white light from the Sun hits oxygen and nitrogen molecules that make up most of the Earth’s atmosphere and is scattered to produce all the colors. However, since the color blue has a shorter wavelength than the rest,it is scattered more.

This effect also explains the other colors that can appear in the sky. Closer to the horizon, the sky will look much paler. Here, the light has traveled through more air and has been scattered more intensively, mixing in with the other colors and losing its blue tinge. With the Sun lower in the sky, as with sunsets, the light has to travel through even more light. This scatters the blue light further, allowing the red and yellow light to travel through.

SOURCE:::: listverse.com

Natarajan

Image of the Day…” Sunset …”

Sunset in Glacier National Park

Beautiful sunset in northern Montana’s Glacier National Park by Sashikanth Chintia Photography.

Photo credit: Sashikanth Chintia Photography

Sashikanth Chintia contributed this photo of a sunset at Glacier National Park, in the U.S. state of Montana on the Canadian border. He wrote:

We wanted to go to Grinnell Lake and shoot a time-lapse. Weather was not co-operative. After hiking 2 1/2 miles, we got rained out and we had to return back. When we hiked back we were offered with a beautiful sunset.

By the way, Glacier National Park encompasses over 1 million acres (4,000 square kilometers) and includes parts of two mountain ranges. The park contains a dozen large lakes, 700 smaller ones and 200 waterfalls. And glaciers? In 1850, the area now comprising the national park had 150 glaciers. There are 25 active glaciers remaining in the park today.

 

Source:::::: earth sky news

Natarajan

Many of us Do not Know these Facts about Mahatma Gandhi….

We all know Mahatma Gandhi as the man who led our country to freedom. But we know little about some smaller and more astonishing facts about his life. The following are 16 facts about Mahatma Gandhi that are mostly unknown:

1. Mahatma Gandhi was nominated for the Nobel Peace prize 5 times

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The committee regrets not giving him the Nobel Peace prize to this day as the award is never given posthumously. (Source)

 

2. M. K. Gandhi was responsible for the Civil Rights movement in 4 continents and 12 countries

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3. The funeral procession of Mahatma Gandhi was 8 kilometers long

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4. Great Britain, the country against whom he fought for independence, released a stamp honouring him, 21 years after his death

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5. Mahatma Gandhi walked/traveled almost 18 kilometers a day throughout his lifetime which is enough to walk around the world twice over

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6. Gandhiji served in the army during the Boer war – he crusaded against violence since the time he realized the horrors of war

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7. Mahatma Gandhi corresponded with a lot of people – Tolstoy, Einstein and Hitler were among the many

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8. Gandhiji was not present during Nehru’s tryst of destiny speech to celebrate independence

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He was in Kolkata fasting for religious harmony.

 

9. Most relics of Gandhiji including the clothes he wore when he was shot are still preserved in Gandhi Museum, Madurai

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10. He never held an official position in any political body during the final years of his life

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11. He was thinking of dissolving the Congress a day before he died

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12. Steve Jobs was a fan of Mahatma Gandhi – his round glasses are not only similar but also a tribute

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13. Gandhiji had a set of false teeth, which he carried in a fold of his loin cloth

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14. Mahatma Gandhi spoke English with an Irish accent, for one of his first teachers was an Irishman

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15. There are 53 major roads (excluding the smaller ones) in India, and 48 roads outside India that are named after him

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16. Gandhiji helped establish 3 football clubs in Durban, Pretoria and Johannesburg all of which were given the same name: Passive Resisters Soccer Club

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Mahatma Gandhi promoted football in his non-violent campaign against racial discrimination. (Source)

Live as if you were to die tomorrow.” Throughout his life Mahatma Gandhi did things that were inspirational, things that nobody thought he could do and made sure that he lived up to this line said by him.

Source::::storypick.com

Natarajan

OCT. 2 … Perfect Day to Start ” Clean India ” Mission…A Fitting Tribute To Mahatma

Mahatma Gandhi, the father of the nation, was not an outspoken leader in his school days. In his The Story of My Experiments with Truth, Gandhi says that he would often run home from school as he could not “bear to talk to anybody.”

 

Gandhi’s marathon walk from his ashram to the sea at Dandi (241 miles) at the age of 60 during the Salt march in 1930 is well documented. It is believed that he enjoyed long walks in high school. In London, Gandhi as a law student used to walk as many as eight to ten miles a day, which saved him ample money.

 

During a radio broadcast for the United States from England, Gandhi’s first words heard were, “Do I have to speak into this thing?”

 

Gandhi was named as the Man of the Year in 1930 by Time Magazine

 

. Gandhi used to regularly correspond with Russian novelist Leo Tolstoy, whose ideals of nonviolent resistance had a profound impact on the Indian leader.

 

It is believed that Gandhi’s income as a lawyer in South Africa touched fifteen thousand dollars a year.

 

In his experiment to live modestly, Gandhi used to experiment on his diets. He started to live on fruits and goat’s milk.

 

Despite his dislike for photographs, Gandhi was the hugely photographed in those days.

 

The United Nations announced October 2 as the day of international day of ‘Ahimsa’

 

Despite studying law in England, Gandhi found it difficult to get a job in India which propelled him to travel to South Africa, where an Indian firm gave him a year-long contract to do legal work

 

Generations to come, it may well be, will scarce believe that such a man as this

one ever in flesh and blood walked upon this Earth – Albert Einstein

SOURCE:::: Yahooindia.com

Natarajan

Image of the Day….Self -Portrait…!!!

Astrophotographer’s self-portrait

A famous shot by Ansel Adams inspired this photo by Daniel McVey.

Photo by Daniel McVey, September 2014.  Visit Daniel McVey's website.

Daniel McVey in Summit County, Colorado has contributed some of the most beautiful images to our pages. He posted this one on EarthSky Facebook and wrote:

Inspired in part by a photo of Ansel Adams on his “Woody.”

Taken on a private ranch in South Park, Colorado. Green airglow visible.

 

Visit Daniel McVey on Facebook or at his website.

SOURCE::::: earth sky news

Natarajan