Technologies

Dazzling Milky Way panorama reveals nearly 1,000 mysterious galactic threads

An astrophysicist behind the beauty compares the image with modern art.

In the early 1980s, scientists imaged the center of our galaxy 25,000 light-years from Earth. To their surprise, they stumbled upon a cluster of «strands» 150 light-years long hanging out in an oddly organized pattern. For years, they scrutinized the stringy forces, trying to understand what they are and why they’re there.

No, these galactic noodles (probably) aren’t the work of aliens. But they later revealed themselves to be some sort of magnetic wiring, catching space-borne cosmic ray electrons and forcing the particles to gyrate around their fields at nearly the speed of light. If anything, the enigma escalated.

Fast-forward to today. The same researcher who led the first imaging endeavor decided to create an updated version. In a paper published online Wednesday and accepted to The Astrophysical Journal Letters, he presents his results: an absolutely spectacular panorama of radio emission data stemming from the Milky Way’s center.

Cosmic phenomena such as star bursts, stellar nurseries and supernova graveyards stained the picture with brilliant streaks, but most strikingly, the image unveiled 10 times more perplexing strands than before. «It’s like modern art,» Farhad Yusef-Zadeh, an astrophysicist at Northwestern University and lead author of the paper, said in a statement. «These images are so beautiful and rich, and the mystery of it all makes it even more interesting.»

He calls the newer picture a «watershed in furthering our understanding of these structures,» because the initial, relatively sparser collection of filaments was too small to draw any real conclusions about their origin and purpose.

Photographing a massive galaxy

It took three years of surveying the sky and 200 hours using the Meerkat telescope at the South African Radio Astronomy Observatory for Yusef-Zadeh’s team to generate precise observations of 20 separate sections.

Then, the researchers pieced the cutouts together and isolated the magnetic filaments by removing the background. That led to the mesmerizing mosaic photograph that resembles a Jackson Pollock.

«I’ve spent a lot of time looking at this image in the process of working on it, and I never get tired of it,» Ian Heywood, an astrophysicist at Oxford University and study co-author, said in a statement. «When I show this image to people who might be new to radio astronomy, or otherwise unfamiliar with it, I always try to emphasize that radio imaging hasn’t always been this way, and what a leap forward Meerkat really is in terms of its capabilities.»

Leads on the filaments

Now blessed with an ocean of inexplicable Milky Way filaments to analyze, Yusef-Zadeh and team are carrying out a sort of population analysis to understand what the cosmic spaghetti strands have in common, and where they differ.

«If you were from another planet, for example, and you encountered one very tall person on Earth, you might assume all people are tall. But if you do statistics across a population of people, you can find the average height,» he said. «That’s exactly what we’re doing. We can find the strength of magnetic fields, their lengths, their orientations and the spectrum of radiation.»

So far, the team concludes the strands’ magnetic fields are amplified as you travel across them and exhibit variation in their radio emissions. Due to the latter, they say the pieces could’ve originated from a black hole that once lurked in the center of our galaxy or a giant radio-emitting bubble, like one discovered in 2019.

Still, huge question marks remain, such as why are these filaments so structured? And why are there so many? Perhaps the biggest confusion lies within the fact that particles on the strands’ field are moving at nearly the speed of light. Any faster, and they’d fit a time-travel requirement.

«How do you accelerate electrons at close to the speed of light?» Yusef-Zadeh wonders. «One idea is there are some sources at the end of these filaments that are accelerating these particles.»

Going forward, the team says they’ll continue searching for answers.

«We’re certainly one step closer to a fuller understanding,» Yusef-Zadeh said. «But science is a series of progress on different levels. We’re hoping to get to the bottom of it, but more observations and theoretical analyses are needed. A full understanding of complex objects takes time.»

Technologies

Tinder Users Must Start Logging In With Their Faces, Starting Nationwide

The social app now has new US requirements including face identification to help quell longstanding problems with catfishing and more.

US Tinder users will find a new feature when they open up the dating app starting Wednesday: A mandatory Face Check on their phones will be required before they can log into their profiles.

The Face Check step will begin with a new request to record a video of your face, a more casual version of setting up Apple’s Face ID login. Tinder will then run checks comparing your face data to your current profile pics and automatically create a small face badge for your profile. We already know how it works, because Tinder has already launched the feature in Canada and California before the full US rollout.

The technology, powered by FaceTec, will keep biometric data of the user’s face in encrypted form but discard the scanning video for privacy. Tinder will be able to use the face data to detect duplicate accounts, in an effort to cut down on fake profiles and identity theft.

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Tinder’s facial recognition rollout is also made to prevent catfishing, or people pretending to be someone else on Tinder to scam or blackmail them. But that also points to a deeper problem on the rise in dating apps — a growing number of bots, many controlled by AI, are designed to glean personal information or fool users into scammy subscriptions, among other problems.

Tinder’s working against these bots on several fronts, including this Face Check push as well as ID Check, which requires a government-issued ID and other types of photo verification.

The dating app also recently released a feature in June to enable double-dating with your friends, which Tinder reports is especially popular with Gen Z users. If you’re worried about the latest hazards on Tinder, we have guide to safety practices.

A representative for Tinder did not immediately respond to a request for comment.

Technologies

Today’s NYT Mini Crossword Answers for Thursday, Oct. 23

Here are the answers for The New York Times Mini Crossword for Oct. 23.

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

Need some help with today’s Mini Crossword? Read on. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Like some weather, memories and I.P.A.s
Answer: HAZY

5A clue: Statement that’s self-evidently true
Answer: AXIOM

7A clue: Civic automaker
Answer: HONDA

8A clue: What fear leads to, as Yoda told a young Anakin
Answer: ANGER

9A clue: Foxlike
Answer: SLY

Mini down clues and answers

1D clue: Verbal «lol»
Answer: HAHA

2D clue: Brain signal transmitter
Answer: AXON

3D clue: Hits with a witty comeback
Answer: ZINGS

4D clue: Sing at the top of a mountain, maybe
Answer: YODEL

6D clue: Name of the famous «Queen of Scots»
Answer: MARY

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: