Technologies

Saturn’s rings reveal a fuzzy, sloshy core lurks within the planet

NASA’s dearly-departed Cassini spacecraft helps scientists study Saturn’s insides.

We can’t send a spacecraft into the belly of the gas giant planet Saturn (well, at least, not one that survives), so sorting out what’s going on in there requires some clever science work. By examining Saturn’s famous rings, a team of researchers has made new discoveries about the planet’s interior.

Some theories suggested Saturn’s core might be a ball of rock, but a study published in the journal Nature Astronomy this week reveals what’s likely «a diffuse soup of ice, rock, and metallic fluids» called a «fuzzy» core.

«The analysis also reveals that the core extends across 60% of the planet’s diameter, which makes it substantially larger than previously estimated,» the California Institute of Technology said in a statement on Monday.

The researchers used data from NASA’s dearly departed, Saturn-studying spacecraft Cassini to make the discoveries. The team focused on ripples in the rings that are caused by a jiggling of the planet’s interior. Caltech likened this concept to that of earthquakes causing our own planet to rumble.

Astronomers have been aware for decades of how Saturn’s jiggling might affect its rings, and the new study brings this idea into sharper focus. «We used Saturn’s rings like a giant seismograph to measure oscillations inside the planet,» said Caltech astrophysicist Jim Fuller, a co-author. «This is the first time we’ve been able to seismically probe the structure of a gas giant planet, and the results were pretty surprising.»

Saturn might have a sloshy belly, but the team thinks it has stable layers with heavier materials in the middle. «The fuzzy cores are like a sludge. The hydrogen and helium gas in the planet gradually mix with more and more ice and rock as you move toward the planet’s center,» said lead author and planetary scientist Christopher Mankovich.

The Saturn findings could help us understand more about what’s going on inside Jupiter, also a gas giant planet. It could also advance ideas about how gas giants form.

NASA’s Cassini spacecraft plunged to its destruction in 2017 at the end of its mission, but it left us with many years worth of data on Saturn, its rings and its moons. As this new study shows, it wasn’t all about the gorgeous exterior views. Cassini’s journey has reached all the way to the very center of the planet.

Technologies

Today’s NYT Strands Hints, Answers and Help for April 16 #774

Here are hints and answers for the NYT Strands puzzle for April 16, No. 774.

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 could be tough. I understood the theme right away, but some of the answers are really difficult to unscramble. 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: This is not working.

If that doesn’t help you, here’s a clue: Leisure time.

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:

STEM, STEMS, STEAM, STEAMS, MAPS, TEES, RIFF, FEAR, FEAT, RATIO, REST

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:

HOBBY, PASTIME, INTEREST, SIDELINE, RECREATION

Today’s Strands spangram

Today’s Strands spangram is JUSTFORFUN. To find it, start with the J that is the farthest-left letter on the top row, and wind down and then back up.

Technologies

T-Mobile Will Give You Up to $800 to Break Up With Your Old Carrier

T-Mobile’s current offer makes it easier to save money when you switch carriers.

We’ve just spotted a T-Mobile deal that lets you keep your phone and get up to $800 to break your current carrier contract. There are some terms and conditions you need to know, but this is a solid deal that can help you cut down on monthly expenses — something many of us are keen to do right now.

This T-Mobile offer is available to anyone who signs up for an Essentials Saver plan at $50 per month and enrolls in AutoPay using an eligible payment method. You’ll also have to bring your own phone. The good news? This deal will pay off any eligible phone for up to four lines.

Additionally, those who switch to T-Mobile and open a new line on the Essentials Saver plan can get up to $800 to break their current carrier contract. T-Mobile will provide a prepaid MasterCard with the total sum you’re eligible for within roughly 15 days. This benefit applies to up to four lines at a time.

Keep in mind that switching to Essentials Saver means you’ll also pay up to $3 in Monthly Regulatory Programs & Telco Recovery Fees. Taxes may also apply every month. The Essentials Saver plan includes high-speed data in the US only, and slower data (128 kbps) in Mexico and Canada. Travel to other countries requires purchasing extra data. Any prepaid MasterCard received expires in six months. These are only some of the applicable terms and conditions.

Looking for a new phone carrier, but not sure if this deal is for you? Check out our list of the best cellphone plans for more options.

MOBILE DEALS OF THE WEEK

Get an iPhone 17 Pro Free With Trade-in and Qualifying Plan at T-Mobile
Google Pixel 10 Pro 128GB Unlocked Phone (Obsidian):

$749 (save $250)
Samsung Galaxy A36 5G 128GB Unlocked Phone (Awesome Black):

$298 (save $102)
Motorola Edge 256GB Unlocked Phone (2024 Model, Midnight Blue):

$241 (save $310)
Google Pixel 9 128GB Unlocked Phone (Obsidian):

$499 (save $300)

Deals are selected by the CNET Group commerce team, and may be unrelated to this article.

Why this deal matters

Switching to a different carrier can make it easier to qualify for deals that aren’t usually available to current customers, and this T-Mobile deal is no exception. Not only can you get up to $800 to break your current contract, but this deal applies to up to four lines if you bring your own phone. Though there’s no stated deadline, we suggest acting fast to start saving on your monthly phone bill.

Technologies

Denon’s New AVR-S980H Breaks Receiver Drought for Home Theater Fans

The Dolby Atmos receiver includes improved streaming support and extra gaming features.

Samsung-owned Denon has unveiled the long-awaited follow-up to its AVR-S970H receiver, the AVR-S980H, which boasts better music streaming and gaming support.

The Denon AVR-S980H is a 5.1.2-channel (7.1) Dolby Atmos receiver that boasts 90 watts per channel, which should be enough to power most home theater speakers.

Connectivity is consistent with the previous model, with six HDMI inputs — three 4K and three 8K/4K 120Hz ports — plus two HDMI outputs. If you’re a gamer, the inputs also support 1440p pass-through and AMD FreeSync.

Streaming support is improved, with Bluetooth, AirPlay 2, Spotify Connect, Tidal Connect, Qobuz Connect and HEOS multiroom. The Denon is also Roon Ready, which means it can be streamed directly from the Roon software.

Read more: Best AV Receiver for 2026

The receiver also supports Denon’s own Home speakers as rears, including the new 200, 400 and 600 models.

The Denon includes a phono input, which means you can plug a turntable into it for a potential boost in sound quality.

It’s been a rough few years for AV fans, with very few new receivers since the end of the pandemic. The AVR-S980H may mark a resurgence of sorts. I look forward to testing this model to see how it stacks up against its elderly competition.

The Denon AVR-S980H will be available this month for $949, only $50 more than the previous version.