Technologies

NASA’s Lucy blasts off on historic mission to Jupiter’s Trojan asteroids

The asteroids are 4.6-billion-year-old relics from the solar system’s earliest days.

A United Launch Alliance Atlas V 401 rocket flared to life under the cover of dark at Cape Canaveral Space Force Station in Floridajust after 2:30 a.m. local time Saturday morning. Encased within the pencil-shaped payload fairing atop the rocket was NASA’s latest interplanetary explorer: a spacecraft named Lucy.

It was the 100th launch from Cape Canaveral Space Launch Complex 41. Approximately 58 minutes after launch the probe, which is about as wide as a bus, was released from the second stage rocket booster to begin its long journey toward Jupiter’s orbit. The United Launch Alliance team celebrated with hugs and clapping in its mission control room.

«It was one of the most exciting experiences of my life,» Hal Levison, principal investigator of the Lucy mission, said post-launch. «It was truly awesome, in the old-fashioned meaning of the word.»

Over the next two years, Lucy will use Earth’s gravity twice to swing toward the solar system’s largest planet. But the gas giant isn’t Lucy’s destination. Instead, it’ll explore a series of asteroids, locked in Jupiter’s orbit, known as the Trojans.

These asteroids have never been studied up close before and move as huge swarms, or camps, at the «Lagrangian points» in Jupiter’s orbit. The Lagrangian points are regions where gravity’s push and pull lock the camps in place, leading and trailing Jupiter in its journey around the sun in perpetuity.

The collection of amorphous space rocks is like a series of cosmic fossils, providing a window into the earliest era of our solar system, some 4.6 billion years ago. Lucy will act as a cosmic palaeontologist, flying past these eight different «fossils» at a distance and studying their surfaces with infrared imagers and cameras.

«No spacecraft has visited so many objects before, and each is a potential window into the material and conditions of the early solar system,» says Alan Duffy, an astrophysicist at Swinburne University in Melbourne.

The idea of examining fossils is core to the mission’s philosophy — right down to its name. «Lucy» is derived from a hominid skeleton discovered in Ethiopia in 1974. The skeleton was dubbed Lucy because the Beatles’ song Lucy in the Sky With Diamonds was playing in the scientists’ camp after the find. Words from all four Beatles are contained on a plaque inside the spacecraft.

Though the early morning launch and separation was marked down as a success on Lucy’s extensive to-do list, the spacecraft had to overcome one final, giant hurdle before it was ready to sail out of Earth’s backyard. About one hour into its flight, the probe experienced «20 minutes of terror,» as it unfurled its 24 foot wide decagonal solar panels.

The panels are critical to the spacecraft’s success and will power Lucy during the 12-year journey toward the Trojans. They can supply about 500 watts of power — about the same amount of energy necessary to run a washing machine, according to NASA. And Lucy will need every watt, because it’ll be the farthest solar-powered spacecraft should it reach its destinations.

Ninety-one minutes after launch, the team acquired a signal from Lucy confirming the solar panels had deployed. «Things were splendid today,» said Omar Baez, the senior launch director of NASA’s Launch Services Program.

That means Lucy is alive and well and now there’s a lot of ground to cover before it reaches its first object of interest: Donaldjohanson, a space rock positioned in the asteroid belt between Mars and Jupiter. That flyby will occur in April 2025.

From there, Lucy will swing toward the Trojans, reaching four worlds throughout 2027 and 2028 in the Greek camp, the swarm of rocks leading Jupiter in orbit. Another Earth flyby will help propel Lucy to its final targets, Patroclus and its binary companion Menoetius, in the Trojan camp trailing Jupiter in 2033. In total, the spacecraft will cover 4 billion miles.

Lucy’s ambitious main mission won’t necessarily end with Patroclus and Menoetius, either. The spacecraft’s orbit will see it drift through the swarms for years to come. NASA has a good track record with extending missions — but you’ll have to keep your fingers crossed that everything goes well for the next decade.

Technologies

You Can’t Trust Your Car’s Driving Assistance System Yet, AAA Report Finds

Both hands-on and hands-off systems required human intervention to avoid accidents in this study.

Technologies

Google’s AI Mode Is Getting New Agentic Features for Restaurant Reservations and More

AI Mode can now do most of the work to find dinner reservations for you.

Google’s AI Mode is getting new agentic capabilities and expanding to 180 new countries and territories around the world, Google announced Thursday. AI Mode allows you to ask questions directly to Google and it’ll kick off a series of searches on your behalf. From there, it will surface relevant information to your query without the need to do any of the deep research yourself. It changes the way you search for things online, and it’s getting even smarter with this latest rollout.

Powered by DeepMind’s Project Mariner, the latest additions bring us further into the agentic AI future we’ve been promised for some time, directly from a search box. Instead of just finding things for you, AI Mode can now do things for you, like finding dinner reservations, flights or concert tickets. The update also brings personalized recommendations and link-sharing capabilities for easier collaboration with friends and family.

Most of the new features are either limited to premium AI subscribers and tucked behind an experiment in Google Labs, but it might not take long before they’re a standard part of your future search experience.

Google did not immediately respond to CNET’s request for further comment.

Restaurant recommendations

Instead of searching for restaurant reservations and then clicking on a specific website to make a reservation, AI Mode surfaces everything you need to complete the action right there. Since it’s contextually aware, you can add specificities to your query that a typical Google search wouldn’t handle well.

You can add the type of cuisine, number of people, time and location to a single query, and AI Mode will get to work and display real-time restaurant reservation time slots to choose from.

Google says it’s partnered with OpenTable, Resy, Tock, Ticketmaster and several other companies to make finding and doing what you want easier, since you won’t have to put in the legwork yourself.

This feature is currently rolling out to Google AI Ultra subscribers in the US who have enabled the specific experiment in Labs.

Personalized recommendations

Another experiment that’s currently available in the US (that also needs to be enabled in Labs) is personalized recommendations. Google says it’s starting with dining-related recommendations, which implies more options will be on the way in the future.

The experiment will use your past conversations with AI Mode, places you’ve interacted with on Search and Maps to provide suggestions tailored specifically to you.

Share AI Mode links with others for collaboration

If you’re planning a vacation or a party, you can now share your research directly with others with a new link-sharing feature built into AI Mode. People who interact with the link will be sent to the last response sent by AI Mode and can continue the conversation on their own to do more exploration on the topic. The original sender of the links can manage them and delete them at any time.

For more, don’t miss everything Google announced at its Pixel 10 event.

Technologies

IPhone or Android, Here’s How to Finally Escape That Endless Group Chat

Done with a group chat? Here’s how to ghost it on any service.

One reason people prefer group chats in Apple’s iMessage or RCS texting is the extra control and security these platforms provide. If everyone in your group is using iPhones, or if you’re on Android chatting through RCS, you’ll get features like typing indicators, high-quality media sharing, and the option to mute or leave a conversation when you need fewer notifications.

The biggest advantage is privacy. Both iMessage and RCS group chats offer end-to-end encryption, so your conversations stay secure. The only time that doesn’t apply is when a thread includes a mix of iPhone and Android users, which limits encryption support.

Knowing these differences can help you manage your chats more effectively, whether you’re keeping up with friends, planning events, or just looking for a little more control over your notifications.

And with RCS support with iOS 18, group chats that include a mix of iPhone and Android participants have more features than ever — but it’s not at the level you’ll experience when a conversation is fully on iMessage or Google Messages. «Green bubble chats» from an iPhone to an Android phone can now include typing indicators, higher-quality media and easier group chats.

However, RCS conversations between the iPhone and Android phones don’t include encryption now, but it should be added in a future update. This will hopefully give these conversations a similar level of privacy that we expect when using chat services like iMessage, WhatsApp or Signal.

Regardless of how you’re in a group chat with others, you can leave a chat. Here are the steps to leave any conversation from your phone’s texting app, regardless of whether it’s happening on iMessage, RCS or as a mixed MMS chat.

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Leaving group chats on an iPhone

You can leave group conversations on your iPhone in two ways. You can either mute a chat,which keeps you in a conversation but you no longer receive notifications about it, or you can outright leave and no longer have access to the chat.

On an iPhone, open Messages and go to the chat thread you want to leave. At the top of the screen are conversation controls, a group of icons with the participants. Tap this to open a pop-up menu. As long as your conversation has four or more participants, iOS gives you the ability to tap Leave this Conversation with red text. If your chat has three or fewer participants, though, the option is grayed out, but you can tap Hide Alerts to prevent the conversation from notifying you further. Tapping Hide Alerts also allows you to mute a conversation, letting you keep access to a chat without necessarily leaving it. These steps apply to both iMessage conversations and to those over RCS.

Hide and block MMS chats on an iPhone

Although you can’t officially leave MMS group chats, you can hide or block the conversation. It’s not as good as outright leaving a conversation (other participants will still see you as in it), but you at least have no personal evidence of the conversation continuing.

On an iPhone, visit the group chat and tap the conversation controls. Instead of seeing Leave this conversation, you will see the option to Delete and Block this conversation. If you’d rather just mute the conversation instead of deleting and blocking it, you can hit Hide Alerts to mute it.

Leave group chats on an Android phone

On an Android phone using Google Messages, visit the chat thread you want to leave. Tap the conversation’s name to bring up the Group Details menu. Within this menu is the Leave Group button. Unlike with iMessage, you can leave chats with as few as three participants.

If you want to just mute notifications, tap Notifications on the Group Details screen to bring up a window with notifications controls. This includes options to make the conversation stay Silent to prevent it from ringing your chat, and if you tap Lock Screen, a pop-up menu will give you the option to prevent notifications. Tap Don’t show notifications at all to enable.

Hide and block MMS chats on an Android phone

On an Android phone with Google Messages, follow the same steps to access options for controlling notifications. This includes visiting the MMS chat thread and then tapping either the name of the conversation or the names of the participants at the top to bring up the Group Details menu. You won’t see a Leave Group option like you did with an RCS thread, but you do get the same ability to tap Notifications to access controls for hiding the conversation. This includes the same options for turning the conversation to Silent and to select Don’t show notifications at all.

SMS vs. MMS vs. RCS

SMS stands for Short Message Service and debuted in 1992. Text messages are limited to 160 characters. MMS stands for Multimedia Messaging Service and supports sending photos, videos or other files and messages longer than 160 characters. MMS supports a group of people chatting in a single conversation thread, while SMS can text multiple people at once but is sent as individual messages to each person. RCS, which launched 15 years ago, is short for Rich Communication Services and can show typing indicators, read receipts and has end-to-end encryption.

While cross-platform chat apps like WhatsApp, Signal and Telegram have better controls for conversations, encryption and privacy, regardless of the type of phone participants are using, they don’t support SMS, MMS or RCS. That’s why the default messaging app on most phones is still widely used, even if it means that a group chat is on a less feature-filled, unsecured standard like MMS.