Technologies

A ‘Messy’ Star Death: How an Early Muse of NASA’s Webb Telescope Came to Be

The Southern Ring Nebula, brought to you by a star’s explosive demise.

When NASA released the James Webb Space Telescope’s very first images this year, astronomers and space-lovers all over the world were met with a menagerie of blurred galaxies from near the beginning of time, coffee-hued dust clouds brimming with wonderful secrets and incandescent realms fit for Disney princess castles. It was a glorious moment for humankind, witnessing how stars can unite us beneath our layers of division.

But among this trailblazing telescope’s first five images, one especially stood out not only for its beauty but also for its mystery — a striking portrait of the Southern Ring Nebula hid an important history yet to be known. Simply, scientists wanted to learn what, exactly, caused this intricate, amoeba-shaped, ancient star explosion aftermath to exist?

Et, voila.

On Thursday, an international team of nearly 70 astronomers used the JWST’s stunning image to deduce the Southern Ring Nebula’s backstory.

Details are published in the journal Nature Astronomy, but basically, what they found is that some 2,500 years ago, a star nearly three times the size of our sun died at about 500 million years of age.

When it died, they say, the stellar body ejected most of its mass into surrounding space, forming shrouds of gas that slowly expanded with time until they turned into the complex folds we see today in the JWST’s Southern Ring Nebula structure.

Then, when all was said and done, the deceased star left behind a sort of corpse, or white dwarf star, with about half the mass of our sun but around the size of Earth. (That’s super dense, to be clear).

Plus, as an added surprise, the astronomers also found evidence of two or three companion stars they believe hastened the blown up star’s death — as well an «innocent bystander» star that might’ve just gotten caught up in the mix.

«When we first saw the images, we knew we had to do something, we must investigate!» Orsola De Marco, lead author of the paper and astrophysicist at Macquarie University, said in a statement. «The community came together, and from this one image of a randomly chosen nebula, we were able to discern much more precise structures than ever before. The promise of the James Webb Space Telescope is incredible.»

That Southern Ring Nebula image really is something

Even back in July, the JWST’s Southern Ring Nebula rendition had raised eyebrows during its reveal. I mean, at the top left of one version of the JWST’s view, taken with the Mid-Infrared instrument, a weird bluish line ended up literally being a galaxy photobomber.

«I made a bet that said, ‘It’s part of the nebula,'» NASA astronomer Karl Gordon recounted during the unveiling. «I lost the bet, because then we looked more carefully at both Nircam and MIRI images, and it’s very clearly an edge-on galaxy.»

We were also able to see not one but two stars dance around one another at the marvel’s center for the first time, stirring the pot of gas and dust to create the ornate patterns that make the image perfect as an iPhone background. (Yes, one of these is the white dwarf that De Marco and fellow scientists discuss in their latest paper.)

«This star is now small and hot but is surrounded by cool dust,» Joel Kastner, another team member from the Rochester Institute of Technology, said in a statement. «We think all that gas and dust we see thrown all over the place must have come from that one star, but it was tossed in very specific directions by the companion stars.»

The other star visible in the JWST’s photo, according to the team, is just one of the companion stars that orbits the central star while the latter loses mass over time.

However, as to why the team believes there aren’t just two stars at play here but rather three, four – maybe more – that’s because of how a series of spiral structures seem to be moving out from the center, generating arches, and how a 3D view of the nebula’s data points to irregular jets of matter shooting from the phenomenon’s center.

«We first inferred the presence of a close companion because of the dusty disk around the central star, the further partner that created the arches and the super far companion that you can see in the image,» De Marco said. «Once we saw the jets, we knew there had to be another star or even two involved at the center, so we believe there are one or two very close companions, an additional one at middle distance and one very far away.

«If this is the case, there are four or even five objects involved in this messy death.»

Technologies

Today’s NYT Strands Hints, Answers and Help for Oct. 23 #599

Here are hints and answers for the NYT Strands puzzle for Oct. 23, No. 599.

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 might be Halloween-themed, as the answers are all rather dangerous. Some of them 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: Please don’t eat me!

If that doesn’t help you, here’s a clue: Remember Mr. Yuk?

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:

POND, NOON, NODE, BALE, SOCK, LOVE, LOCK, MOCK, LEER, REEL, GLOVE, DAIS, LEAN, LEAD, REEL

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:

AZALEA, HEMLOCK, FOXGLOVE, OLEANDER, BELLADONNA

Today’s Strands spangram

Today’s Strands spangram is POISONOUS. To find it, look for the P that is the first letter on the far left of the top row, and wind down and across.

Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for Oct. 23, #395

Here are hints and the answers for the NYT Connections: Sports Edition puzzle for Oct. 23, No. 395.

Looking for the most recent regular Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles.

Today’s Connections: Sports Edition has one of those crazy purple categories, where you wonder if anyone saw the connection, or if people just put that grouping together because only those four words were left. If you’re struggling but still want to solve it, read on for hints and the answers.

Connections: Sports Edition is published by The Athletic, the subscription-based sports journalism site owned by The Times. It doesn’t show up in the NYT Games app but appears in The Athletic’s own app. Or you can play it for free online.

Read more: NYT Connections: Sports Edition Puzzle Comes Out of Beta

Hints for today’s Connections: Sports Edition groups

Here are four hints for the groupings in today’s Connections: Sports Edition puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: Fan noise.

Green group hint: Strategies for hoops.

Blue group hint: Minor league.

Purple group hint: Look for a connection to hoops.

Answers for today’s Connections: Sports Edition groups

Yellow group: Sounds from the crowd.

Green group: Basketball offenses.

Blue group: Triple-A baseball teams.

Purple group: Ends with a basketball stat.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections: Sports Edition answers?

The yellow words in today’s Connections

The theme is sounds from the crowd. The four answers are boo, cheer, clap and whistle.

The green words in today’s Connections

The theme is basketball offenses. The four answers are motion, pick and roll, Princeton and triangle.

The blue words in today’s Connections

The theme is triple-A baseball teams. The four answers are Aces, Jumbo Shrimp, Sounds and Storm Chasers.

The purple words in today’s Connections

The theme is ends with a basketball stat. The four answers are afoul, bassist, counterpoint and sunblock.

Technologies

Amazon’s Delivery Drivers Will Soon Wear AI Smart Glasses to Work

The goal is to streamline the delivery process while keeping drivers safe.

Amazon announced on Wednesday that it is developing new AI-powered smart glasses to simplify the delivery experience for its drivers. CNET smart glasses expert Scott Stein mentioned this wearable rollout last month, and now the plan is in its final testing stages.

The goal is to simplify package delivery by reducing the need for drivers to look at their phones, the label on the package they’re delivering and their surroundings to find the correct address.

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

A heads-up display will activate as soon as the driver parks, pointing out potential hazards and tasks that must be completed. From there, drivers can locate and scan packages, follow turn-by-turn directions and snap a photograph to prove delivery completion without needing to take out their phone.

The company is testing the glasses in select North American markets.

Watch: See our Instagram post with a video showing the glasses

A representative for Amazon didn’t immediately respond to a request for comment.

To fight battery drain, the glasses pair with a controller attached to the employee’s delivery vest, allowing them to replace depleted batteries and access operational controls. The glasses will support an employee’s eyeglass prescription. An emergency button will be within reach to ensure the driver’s safety.

Amazon is already planning future versions of the glasses, which will feature «real-time defect detection,» notifying the driver if a package was delivered to the incorrect address. They plan to add features to the glasses to detect if pets are in the yard and adjust to low light.