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Hubble Captures Majestic Photo of a Galaxy with an ‘Explosive Past’

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3 years ago

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Hubble Captures Majestic Photo of a Galaxy with an ‘Explosive Past’

A new image from the Hubble Space Telescope shows a spiral galaxy about 150 million light-years away. But NASA says don’t be fooled: Its peaceful state masks a violent past.

Beautiful and peaceful now, but with a violent history
This “lazy winding spiral arm” image of galaxy NGC 976 was taken by the Hubble Space Telescope, courtesy of NASA and the European Space Agency (ESA). Despite its calm appearance, NGC 976 experienced one of the most violent astronomical phenomena: a supernova explosion, the space organization said.

“These catastrophically violent events occur at the end of a massive star’s life and can overtake entire galaxies in a short period of time,” NASA/ESA explained. “While supernovae mark the death of massive stars, they It also leads to the production of heavy elements, which are incorporated into future generations of stars and planets.”

Supernovae also help astronomers measure the distances of distant galaxies, as the energy released into space by certain types of supernova explosions is described as “remarkably uniform,” allowing them to estimate their distance from Earth based on the brightness of the light when it finally arrives.

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In this latest image taken with Hubble’s Wide Field Camera 3, a series of observations from Hubble’s “nearby” galaxies (in quotation marks because they are still very far away from us, but very much in the grand scheme of the universe) close). Supernovae and “pulsating” stars called Cepheids.

“Both Cepheids and supernovae are used to measure astronomical distances, and galaxies containing both types of objects provide useful natural laboratories in which to calibrate the two methods against each other,” NASA explained.

Complete News Source : PetaPixel

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

Published

2 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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