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Nasa captures image of mid-level flare erupting from Sun on Jan 20

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3 years ago

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Nasa captures image of mid-level flare erupting from Sun on Jan 20

NASA’s Solar Dynamics Observatory on Thursday captured an image of the sun emitting a mid-level solar flare that peaked at 1.01am EST (11.31am IST). Solar flares are powerful bursts of electromagnetic radiation that can last from minutes to hours. NASA classifies the flare as an M5.5-class flare, a moderately severe X-ray flare.

“The sun launched a mid-level solar flare on January 20, 2022, peaking at 1:01 a.m. EST,” NASA said.

While harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, when it is intense, it can affect radio communications, power grids, navigation signals, and pose a risk to spacecraft and astronauts. According to NASA, increased levels of X-ray and extreme ultraviolet radiation have caused ionization in the lower layer of the ionosphere on the sunlit side of Earth.

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When a sufficiently strong solar flare occurs, radio waves interacting with electrons in the ionosphere lose energy due to more frequent collisions in the dense environment in the lower layers of the ionosphere. This can lead to degradation and complete absorption of the HF radio signal, resulting in radio blackouts. Usually associated with sunspot groups. As these magnetic fields develop, they reach unstable levels and release energy in various forms. These include electromagnetic radiation observed in the form of solar flares,” NOAA’s Space Weather Prediction Center said on its website.

Complete News Source : Hindustan Times

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Nasa’s old map of Jupiter, which reminds many of dosa, has gone viral once more

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3 years ago

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May 25, 2022

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Nasa’s old map of Jupiter, which reminds many of dosa, has gone viral once more

Certain images or videos frequently resurface on the Internet, leaving people speechless. When those clips or pictures are shared again on one social media platform or another, they create a buzz. The National Aeronautics and Space Administration (Nasa) created and posted this image of a map of Jupiter online a few years ago. After being shared on Twitter, the image drew a lot of attention this time. And, as usual, the image made people think of dosa, a popular South Indian dish.

The image was shared by the Twitter account Latest in Space. “From the very bottom of Jupiter, I’m looking up. While tweeting the image, they wrote, “Seen by NASA Cassini.” The images from the Cassini spacecraft’s narrow-angle camera were used to create this out-of-this-world image, which is part of a coloured map series produced by the space agency.

The article was published a few days ago. The tweet has received nearly 20,000 likes since it was shared, and the number is growing. The tweet has been retweeted more than 2,000 times. Take a look at some of the comments to see how the image of Jupiter looks like dosa.

A Twitter user commented, “Looks like a designer dosa.” “When I rush to pick up a call, this is what happens to my dosa on the dosa pan,” one joked. “This is how my mother makes Dosa,” a third said. “Jupiter in the making,” wrote a fourth, along with a photo of someone preparing – you guessed it – dosa.

 

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