Technologies

Keep an Eye Out for a Newly Discovered Comet in October

You might not even need binoculars to see this comet, named SWAN25B.

No tricks, but skywatchers may be in for an October treat when a newly discovered comet passes through our skies. Comet C/2025 R2 (SWAN) — or SWAN25B for short — looks to be heading our way.

The comet — named after the science instrument aboard the SOHO space observatory, which observes the sun — was first spotted on Sept. 11 by Ukrainian amateur astronomer Vladimir Bezugly, while studying images captured by SWAN.

«This is a milestone, the 20th official SWAN comet so far,» Bezugly told Universe Today.

Read more: 7 Stargazing Apps for Spotting Constellations and More

Bezugly made the discovery one day before the comet reached its closest point to the sun, which is known as perihelion.

«It was an easy comet for detection due to sufficient brightness in the (ultraviolet) band and location in the SWAN images, exactly in its center,» Bezugly told Universe Today. «But it was difficult due to the very close location to the sun and angular motion, which is very close to the sun’s motion in SWAN images.»

On Sept. 17, an observatory in Chile snapped a photograph using a telescope, showing SWAN25B with a bright coma and striking emerald ion tail. A coma is an atmosphere that forms around a comet as it nears the sun. The sun’s heat causes the frozen gases and icy chunks in the comet’s nucleus to change and create an atmosphere.

«With its orbit still poorly constrained due to a very short observational arc, this comet has quickly become a fascinating target to follow in the coming weeks,» the team in Chile said.

What exactly is a comet?

NASA calls comets «cosmic snowballs of frozen gases, rock, and dust that orbit the sun,» noting that «when frozen, they are the size of a small town.»

Their most famous comet feature is probably the tail. When comets come near the sun, they heat up and spew dust and gases, forming the tail, which streams away from the sun. NASA says there are likely billions of comets orbiting our sun.

The most famous comet is Halley’s comet, which appears every 76 years. It was last seen in Earth’s skies in 1986 and will return in 2061.

When should I look for the new comet?

According to LiveScience, the comet should pass closest to Earth around Oct. 19-20, and some astronomers think it could be bright enough to observe without a telescope or binoculars. Look for a faint, fuzzy patch of light. A smartphone app can help you find it.

You can track the position of SWAN25B using TheSkyLive.com, which gives the comet’s distance from the Earth in real time and offers a neat interactive star map. That map lets you enter your location so you can see what the sky looks like from where you live.

It’s much easier to see the comet, or any cosmic features in the night sky, if you head away from city lights and go to a dark area in the country. Try to find a clear night, when the clouds won’t impact visibility. SWAN25B might be bright enough to observe by looking up in the sky.

More skygazing highlights

October is already a busy month for skywatchers.

A supermoon will hang in the night sky bigger and brighter than usual during its perigee, and a great time to head outside to see it is Oct. 6, when there’s a full moon. The October supermoon will be the first of four consecutive supermoons, which we can expect every month through January of next year.

If you’re looking for help to guide your skywatching this October, head to our list of Best Stargazing Apps.

Technologies

You’ll Soon Be Able to Buy Walmart Products Through ChatGPT

OpenAI’s chatbot already connects to Etsy and Shopify. Now you can buy bananas too.

OpenAI and Walmart will soon offer shopping via AI through ChatGPT, the retail giant said in a press release on Tuesday.

While using ChatGPT’s Instant Checkout feature, customers can buy groceries, electronics or other essentials within the chatbot interface.

Walmart has its own AI assistant in its app named Sparky. With Sparky, customers can ask questions about products and get summaries of reviews to find the best item.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

«For many years now, e-commerce shopping experiences have consisted of a search bar and a long list of item responses. That is about to change,» Walmart CEO Doug McMillon said in a statement. «There is a native AI experience coming that is multi-media, personalized and contextual. We are running towards that more enjoyable and convenient future with Sparky and through partnerships including this important step with OpenAI.»

When asked for comment, Walmart referred to its press release. Walmart also said it wouldn’t discuss the financial terms of the agreement at this time.

«We’re excited to partner with Walmart to make everyday purchases a little simpler. It’s just one way AI will help people every day under our work together,» OpenAI CEO Sam Altman said in a press release.

OpenAI referred to Walmart’s press release when asked for comment.

The latest deal with Walmart comes as OpenAI tries to make ChatGPT an all-in-one shopping experience. AI chatbots are increasingly being used as vehicles for online shopping. They can synthesize reviews from across the internet and give people direct answers to shopping questions. Already, ChatGPT connects with Etsy and Shopify with its Instant Checkout feature, allowing people to buy directly. OpenAI also added more shopping features in ChatGPT Search earlier this year.

(Disclosure: Ziff Davis, CNET’s parent company, in April filed a lawsuit against OpenAI, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.)

Technologies

OpenAI Will Loosen ChatGPT’s Mental Health Guardrails and Allow Erotica for Adult Users

Sam Altman said the company will ease limits for adults after rolling out age verification.

ChatGPT is treading cautiously right now, but the chatbot may become more risqué by the end of the year.

In recent weeks, the generative AI chatbot has been operating under somewhat stringent limitations, as OpenAI tried to address concerns that it was not handling sensitive mental health issues well. But CEO Sam Altman said in a post on X Tuesday that the company would ease some of those restrictions because it’s «been able to mitigate the serious mental health issues.»

Though Altman didn’t elaborate on what tools are being used to address the problem, OpenAI recently announced new parental controls in ChatGPT.

CNET reached out to OpenAI for details, but the company did not immediately respond to a request for comment. (Disclosure: Ziff Davis, CNET’s parent company, in April filed a lawsuit against OpenAI, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.)

Other changes are also expected. Altman said the company could allow «erotica» for verified adult users as it implements an «age-gating» system, or age-restricted content, in December. The mature content is part of the company’s «treat adult users like adults» principle, Altman said.

Altman’s post also announced a new version of ChatGPT in the next few weeks, with a personality that behaves more like the company’s GPT-4o model. Chatbot users had complained after the company replaced 4o with the impersonal GPT-5 earlier this year, saying the new version lacked the engaging and fun personality of previous chatbot models.

«If you want your ChatGPT to respond in a very human-like way, or use a ton of emoji, or act like a friend, ChatGPT should do it (but only if you want it, not because we are usage-maxxing),» Altman wrote.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

After OpenAI was sued by parents who alleged ChatGPT contributed to their teen son’s suicide, the company imposed an array of new restrictions and changes, including parental controls, alerts for risky behavior and a teen-friendly version of the chatbot. In the summer, OpenAI implemented break reminders that encourage people to occasionally stop chatting with the bot.

On Tuesday, the company also announced the creation of a council of experts on AI and well-being, including some with expertise in psychology and human behavior.

This comes as lawmakers and regulators are ringing the alarm on the risks AI tools pose to people, especially children. On Monday, California Governor Gavin Newsom signed new restrictions on AI companion chatbots into law. Last month, the Federal Trade Commission launched an investigation into several AI companies, including OpenAI.

Technologies

Today’s NYT Strands Hints, Answers and Help for Oct. 15 #591

Here are hints — and the answers — for the NYT Strands puzzle for Oct. 15, No. 591.

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles.

Today’s NYT Strands puzzle is a fun one, once you understand the theme. Some of the answers are a bit tough to unscramble, so if you need hints and answers, read on.

I go into depth about the rules for Strands in this story.

If you’re looking for today’s Wordle, Connections and Mini Crossword answers, you can visit CNET’s NYT puzzle hints page.

Read more: NYT Connections Turns 1: These Are the 5 Toughest Puzzles So Far

Hint for today’s Strands puzzle

Today’s Strands theme is: Going up?

If that doesn’t help you, here’s a clue: Not an escalator, but…

Clue words to unlock in-game hints

Your goal is to find hidden words that fit the puzzle’s theme. If you’re stuck, find any words you can. Every time you find three words of four letters or more, Strands will reveal one of the theme words. These are the words I used to get those hints but any words of four or more letters that you find will work:

ROTATE, LOBE, NOPE, RATS, STAR, SAME, LOSE, VOTE, BUTTE, SAMS, BAMS

Answers for today’s Strands puzzle

These are the answers that tie into the theme. The goal of the puzzle is to find them all, including the spangram, a theme word that reaches from one side of the puzzle to the other. When you have all of them (I originally thought there were always eight but learned that the number can vary), every letter on the board will be used. Here are the nonspangram answers:

ALARM, OPEN, CLOSE, LOBBY, GROUND, BASEMENT

Today’s Strands spangram

Today’s Strands spangram is ELEVATORBUTTONS. To find it, look for the E that’s three letters to the right on the bottom row, and wind straight up, and then straight down.