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NASA’s Juno Spacecraft captures seventh of eight Features of Jupiter’s ‘string of pearls’

The image was taken by the JunoCam imager on December 11 as the Juno spacecraft performed its third close flyby of Jupiter

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NASA's Juno
Juno spacecraft and its science instruments from artist's view. Wikimedia
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Washington, December 14, 2016: In its latest close flyby of Jupiter, NASA’s Juno spacecraft captured the seventh of eight features forming a ‘string of pearls — massive counterclockwise rotating storms that appear as white ovals in the gas giant’s southern hemisphere, the US space agency said on Wednesday.

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The image was taken by the JunoCam imager on December 11 as the Juno spacecraft performed its third close flyby of Jupiter, NASA said.

At the time the image was taken, the spacecraft was about 24,600 kilometres from the planet.

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JunoCam is a colour, visible-light camera designed to capture remarkable pictures of Jupiter’s poles and cloud tops.

As Juno’s eyes, it will provide a wide view, helping to provide context for the spacecraft’s other instruments.

The Juno spacecraft launched on August 5, 2011, from Cape Canaveral, Florida, and arrived at Jupiter on July 4, 2016.

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During its close flybys, Juno will probe beneath the obscuring cloud cover of Jupiter and study its auroras to learn more about the planet’s origins, structure, atmosphere and magnetosphere. (IANS)

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USA: Everything you want to know about Security Clearance; Find out here!

A security clearance allows a person access to classified national security information or restricted areas.

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Former CIA Director John O. Brennan speaks at the Council on Foreign Relations in Washington, March 11, 2014. President Donald Trump revoked Brennan's security clearance Wednesday. VOA
Former CIA Director John O. Brennan speaks at the Council on Foreign Relations in Washington, March 11, 2014. President Donald Trump revoked Brennan's security clearance Wednesday. VOA

U.S. President Donald Trump on Wednesday revoked the security clearance of former CIA Director John Brennan. We take a look at what that means.

What is a security clearance?

A security clearance allows a person access to classified national security information or restricted areas after completion of a background check. The clearance by itself does not guarantee unlimited access. The agency seeking the clearance must determine what specific area of information the person needs to access.

What are the different levels of security clearance?

There are three levels: Confidential, secret and top secret. Security clearances don’t expire. But, top secret clearances are reinvestigated every five years, secret clearances every 10 years and confidential clearances every 15 years.

All federal agencies follow a list of 13 potential justifications for revoking or denying a clearance. VOA
All federal agencies follow a list of 13 potential justifications for revoking or denying a clearance. VOA

Who has security clearances?

According to a Government Accountability Office report released last year, about 4.2 million people had a security clearance as of 2015, they included military personnel, civil servants, and government contractors.

Why does one need a security clearance in retirement?

Retired senior intelligence officials and military officers need their security clearances in case they are called to consult on sensitive issues.

Also Read: Governments Across The World Request Apple for 30,000 Device Information

Can the president revoke a security clearance?

Apparently. But there is no precedent for a president revoking someone’s security clearance. A security clearance is usually revoked by the agency that sought it for an employee or contractor. All federal agencies follow a list of 13 potential justifications for revoking or denying a clearance, which can include criminal acts, lack of allegiance to the United States, behavior or situation that could compromise an individual and security violations. (VOA)