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Revealed: How the moon got its tattoos

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moonWashington : New NASA research has given new clues to how the moon got its mysterious “tattoos” — swirling patterns of light and dark found at over a hundred locations across the lunar surface.

“These patterns, called ‘lunar swirls,’ appear almost painted on the surface of the moon,” said John Keller from NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

“They are unique; we’ve only seen these features on the moon, and their origin has remained a mystery since their discovery,” he added.

Keller is project scientist for NASA’s Lunar Reconnaissance Orbiter (LRO) mission which made the observations.

Lunar swirls can be massive and appear in groups or just as an isolated feature.

Previous observations yielded two significant clues about their formation: First, they appear where ancient bits of magnetic field are embedded in the lunar crust (although not every “fossil” magnetic field on the moon has a lunar swirl).

Second, the bright areas in the swirls appear to be less weathered than their surroundings.

Perhaps the magnetic field shields the surface from weathering by the solar wind.

The new models reveal that the magnetic field can create a strong electric field when the solar wind attempts to flow through.

It is this brawny electric potential of many hundreds of volts that could deflect and slow particles in the solar wind.

This would reduce the weathering from the solar wind, leaving brighter regions over protected areas.

The new models are published separately as a series of three papers – in Icarus, Journal of Geophysical Research: Space Physics and the Journal of Geophysical Research: Planets.

New observations from LRO appear to provide support for the magnetic shield hypothesis, but don’t rule out the other ideas.

“Until you have somebody making measurements on the lunar surface we may not get a definitive answer, but the new observations are consistent with earlier observations that indicate the swirls are less weathered than their surroundings,” said Keller.

 

Business

Apple is giving a huge discount on its gadgets: Details inside

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If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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