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NASA Astronomy Picture of the Day 17 March 2023: Mythological Medusa Nebula; meet Abell 21

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Nebulae are one of the most spectacular sights to see in space. These celestial objects are a giant cloud of dust and gas in space, according to NASA. Nebulae exist in interstellar space, which is the space between stars. Some nebulae originate from the gas and dust thrown out by the explosion of a dying star while other nebulae are star-forming regions. Due to the star-forming nature of Nebulae, they are also known as Star Nurseries. A Nebula can contain as few as ten stars or as many as millions of stars.

Today’s NASA Astronomy Picture of the Day is a picture of Abell 21, which is also known as the Medusa Nebula due to the serpentine filaments of gas in the cloud. According to NASA, the Medusa Nebula is an old planetary nebula located in the Gemini constellation about 1500 light-years away and spans nearly 4 light-years across.

The picture was captured by astronomer Martin Bradley of the Chesterfield Astronomical Society.

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How is a Nebula captured?

In order to see and capture pictures of nebulae, astronomers use very powerful telescopes. Space telescopes such as NASA’s Spitzer Space Telescope and Hubble Space Telescope are used for the same.

NASA’s description of the picture

Braided and serpentine filaments of glowing gas suggest this nebula’s popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away in the constellation Gemini. Like its mythological namesake, the nebula is associated with a dramatic transformation.

The planetary nebula phase represents a final stage in the evolution of low mass stars like the sun as they transform themselves from red giants to hot white dwarf stars and in the process shrug off their outer layers. Ultraviolet radiation from the hot star powers the nebular glow. The Medusa’s transforming star is the faint one near the center of the overall bright crescent shape. In this deep telescopic view, fainter filaments clearly extend below and right of the bright crescent region. The Medusa Nebula is estimated to be over 4 light-years across.


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Chatgpt: How ChatGPT Bug exposed more than just users’ chat history, including credit card details

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The information that the ChatGPT bug exposed during an outage earlier this week was more than just chat history. On March 20, Microsoft-backed OpenAI temporarily disabled ChatGPT earlier to fix a bug that allowed some users to see the titles of other users’ chat history on the popular AI chatbot. Now in an update the company has said that the bug may have been exposed more, this includes some personal data of ChatGPT Plus subscribers, including their payment information.
The payment information that was leaked
“Upon deeper investigation, we also discovered that the same bug may have caused the unintentional visibility of payment-related information of 1.2% of the ChatGPT Plus subscribers who were active during a specific nine-hour window. In the hours before we took ChatGPT offline on Monday, it was possible for some users to see another active user’s first and last name, email address, payment address, the last four digits (only) of a credit card number, and credit card expiration date. Full credit card numbers were not exposed at any time,” OpenAI said in the update.
It further added that it has reached out to notify affected users that their payment information may have been exposed. It also claimed that there is no ongoing risk to users’ data.
What caused the bug
In a tweet on March 22, OpenAI CEO Sam Altman said a significant issue in ChatGPT was the result of a “bug in an open source library.” It said that the “bug was discovered in the Redis client open-source library” that OpenAI uses to cache user information in its server.
The company, however, did not reveal the exact number of people impacted by the big. This technical glitch surely does mean that users need to be cautious of AI tools, including chatbots. Most AI tools are still in beta phase, also with the sudden sharp rise in the number of AI tools in the market, it is not really clear/certain that how many of them have been tested properly as well as come with the due security checks.

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Sony announces a discount on its PlayStation 5. Here’s all you need to know

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Sony has announced a summer promotional offer for the PlayStation 5, where buyers can get a discount of 5,000 on all variants of the console. The offer comes after a brief hiatus, with the PS5 now available for purchase across multiple online channels in the country. Initially launched for pre-orders, Sony is now enticing customers with this special discount.

The company is offering a special summer promotional offer for buyers to get 5,000 off on all variants of the PS5, which started on April 1 and will only be valid for a limited time. In November, Sony had raised the prices of the PS5 Digital Edition and the standard version to 44,990 and 54,990, respectively. With this discount, buyers will be able to virtually reverse the price increase.

Recently, restocks of the PlayStation 5 in India have become more frequent, with two pre-orders seen in the country just last month. Additionally, Sony has announced that the console will also be made available for purchase in physical stores, promising better stock availability for customers.

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At CES 2023, Jim Ryan, the gaming head of Sony, announced that the supply constraint issues with PlayStation 5 are coming to an end and it will be easier for customers to find the console at retailers worldwide starting from that point forward.

Several websites, such as Sony Center, Amazon India, Flipkart, and e2z Store, have fulfilled Sony’s promise of making the PlayStation 5 more widely available by restocking the console.

 

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Parts of Twitter’s source code leaked online? Report says…

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Some parts of Twitter’s source code — the fundamental computer code on which the social network runs — were leaked online, the social media company said in a legal filing on Sunday.

The leak creates more challenges for billionaire Elon Musk. (AFP)
The leak creates more challenges for billionaire Elon Musk. (AFP)

According to the legal document, filed with the U.S. District Court of the Northern District of California, Twitter had asked GitHub, an internet hosting service for software development, to take down the code where it was posted. The platform complied and said the content had been disabled, according to the filing. Twitter also asked the court to identify the alleged infringer or infringers who posted Twitter’s source code on systems operated by GitHub without Twitter’s authorization.

Also read: Elon Musk sent a mail to Twitter employees at 2:30 am. He said…

Twitter noted in the filing that the postings infringe copyrights held by Twitter.

The leak creates more challenges for billionaire Elon Musk, who bought Twitter last October for $44 billion and has had massive layoffs since then.

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The news was first reported by the New York Times.

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