Technologies

There’s a Growing Weak Spot in Earth’s Magnetic Field. What it Means

The weak spot has been known about for over half a century, but it’s now getting bigger.

It would be an understatement to say that the Earth’s magnetic field is important. It’s one of the reasons we’re able to live on this rock tumbling through space, and it also gives us the gorgeous aurora borealis. So it’s a pretty big deal when it changes — and such a change is occurring right now in the South Atlantic Ocean, where the magnetic field’s weakest point appears to be growing.

The European Space Agency spent 11 years studying the magnetic field via the agency’s Swarm operation. Part of the mission was to measure and observe the South Atlantic Anomaly, a pronounced weak spot in the Earth’s magnetic field that sits over South America. This was originally discovered in 1958 when satellites first started measuring radiation around the Earth, so its existence is nothing new.

However, data from the Swarm mission shows that the weak spot has been rapidly growing, extending its presence across the Atlantic Ocean toward Africa.

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Why is the weak spot growing?

Per the ESA, this phenomenon can be best explained by strange behaviors far within the Earth at the boundary where the Earth’s liquid outer core meets the rocky mantle layer. This boundary, referred to as reverse flux patches, is acting funny and causing the magnetic field to weaken in that one spot.

«Normally, we’d expect to see magnetic field lines coming out of the core in the southern hemisphere,» says C.C. Finlay, lead author of the study and professor of geomagnetism at the Technical University of Denmark. «But beneath the South Atlantic Anomaly, we see unexpected areas where the magnetic field, instead of coming out of the core, goes back into the core. Thanks to the Swarm data, we can see one of these areas moving westward over Africa, which contributes to the weakening of the South Atlantic Anomaly in this region.»

In addition to the South Atlantic Anomaly, the Swarm mission also showed that a stronger section of the magnetic field over Canada was also getting weaker, while the one over Siberia was getting stronger.

A danger to satellites everywhere

The weakened zone won’t have a significant impact on humans, as the atmosphere primarily deals with the elements that affect the Earth’s surface. As NASA says, the weakening is still within what scientists consider «normal variation,» so daily life isn’t affected.

However, things in low Earth orbit aren’t so lucky. Per the ESA, satellites and other spacecraft passing through the region will face higher radiation exposure that «can lead to malfunctions or damage to critical hardware, and even blackouts.»

As Finlay notes in the study, space agencies take the SAA into consideration when building modern spacecraft, satellites and other space-worthy technology, so not only are existing satellites at risk of damage, but the expanding weak spot will also affect how future satellites and spacecraft are designed.

The ESA says that the Swarm mission will continue to gather data about the Earth’s magnetic field into the foreseeable future.

«It’s really wonderful to see the big picture of our dynamic Earth thanks to Swarm’s extended timeseries,» says ESA Swarm Mission Manager Anja Stromme. «The satellites are all healthy and providing excellent data, so we can hopefully extend that record beyond 2030, when the solar minimum will allow more unprecedented insights into our planet.»

Technologies

Today’s NYT Connections Hints, Answers and Help for Nov. 24, #897

Today’s Connections puzzle is kind of tough. Here are hints, answers and help for Nov. 24, #897.

Looking for the most recent 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, Connections: Sports Edition and Strands puzzles.

Today’s NYT Connections puzzle is kind of tough. The purple category once again wants you to find hidden words inside other words. If you need help sorting the words into groups, you’re in the right place. Read on for clues and today’s Connections answers.

The Times now has a Connections Bot, like the one for Wordle. Go there after you play to receive a numeric score and to have the program analyze your answers. Players who are registered with the Times Games section can now nerd out by following their progress, including the number of puzzles completed, win rate, number of times they nabbed a perfect score and their win streak.

Read more: Hints, Tips and Strategies to Help You Win at NYT Connections Every Time

Hints for today’s Connections groups

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

Yellow group hint: Like an air fryer.

Green group hint: In your vehicle.

Blue group hint: Take out your laptops, dump out your water.

Purple group hint: Like a rainbow.

Answers for today’s Connections groups

Yellow group: Small kitchen appliances.

Green group: Features of a car’s center console.

Blue group: Seen while going through airport security.

Purple group: Ending in colors.

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

What are today’s Connections answers?

The yellow words in today’s Connections

The theme is small kitchen appliances. The four answers are blender, microwave, rice cooker and toaster.

The green words in today’s Connections

The theme is features of a car’s center console. The four answers are air conditioner, cup holder, radio and shifter.

The blue words in today’s Connections

The theme is seen while going through airport security. The four answers are bin, carry-on, metal detector and X-ray.

The purple words in today’s Connections

The theme is ending in colors. The four answers are infrared, marigold, stingray and ultraviolet.

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Toughest Connections puzzles

We’ve made a note of some of the toughest Connections puzzles so far. Maybe they’ll help you see patterns in future puzzles.

#5: Included «things you can set,» such as mood, record, table and volleyball.

#4: Included «one in a dozen,» such as egg, juror, month and rose.

#3: Included «streets on screen,» such as Elm, Fear, Jump and Sesame.

#2: Included «power ___» such as nap, plant, Ranger and trip.

#1: Included «things that can run,» such as candidate, faucet, mascara and nose.

Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for Nov. 24, #427

Here are hints and the answers for the NYT Connections: Sports Edition puzzle for Nov. 24, No. 427.

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.

Music lovers, today’s Connections: Sports Edition has a fun green category for you. You’ll recognize some familiar phrases in the grid, I think. If you’re struggling with today’s puzzle 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 appear in the NYT Games app, but it does 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: Not long pants.

Green group hint: Sing out.

Blue group hint: Gridiron guys who share a name.

Purple group hint: Like a law.

Answers for today’s Connections: Sports Edition groups

Yellow group: Types of shorts.

Green group: Popular arena/stadium songs.

Blue group: Football Drews.

Purple group: ____ rule.

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 types of shorts. The four answers are basketball, bike, compression and gym.

The green words in today’s Connections

The theme is popular arena/stadium songs. The four answers are Eye of the Tiger, Jump Around, Sandstorm and Thunderstruck.

The blue words in today’s Connections

The theme is football Drews. The four answers are Bledsoe, Brees, Lock and Pearson.

The purple words in today’s Connections

The theme is ____ rule. The four answers are infield fly, mercy, tuck and unwritten.

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

Technologies

Today’s NYT Mini Crossword Answers for Monday, Nov. 24

Here are the answers for The New York Times Mini Crossword for Nov. 24.

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? Two down might be my favorite clue, and answer, this puzzle has ever offered. Read on for all of the answers. 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.