The hunt for exoplanets is venturing beyond the Milky Way. Astronomers using NASA's Chandra X-ray Observatory have detected what might be the first signs of a planet in another galaxy. The team noticed dips in X-ray brightness that hint at a planet transiting in front of a star in the Messier 51 (aka M51) galaxy 28 million light-years away. For context, all the exoplanet candidates in the Milky Way are no more than 3,000 light-years from Earth — this planet would easily set a distance record if confirmed.

The very nature of stars made the feat possible. As the researchers had to focus on X-ray bright binary systems where the region of bright rays is relatively tiny, the transit was considerably easier to spot. Conventional detection of nearby stars requires much more sensitive light detection, as a planet might only block a small amount of light from a given star.

The planet itself is believed to be as large as Saturn, but would orbit its hosts (a star 20 times the mass of the Sun as well as a black hole or neutron star) at twice the distance.

Scientists didn't believe the dimming was due to gas clouds or dust, as those aren't consistent with the event they recorded in M51. A planet, however, would line up with the data.

The challenge, as you might guess, is verifying that data. The planet's large orbit could rule out another transit for roughly 70 years, and it wouldn't be clear exactly when astronomers would have to take a look. The three-hour transit of this planet candidate didn't provide a large window. That's also assuming the 'living' star doesn't explode and bathe the planet in radiation.

If there's ever a confirmation, though, the discovery would be very significant. While there aren't many doubts that planets exist in other galaxies, it would be useful to have evidence of their existence. This could also significantly widen the scope of future planetary searches to include the galactic neighborhood, not just close-by stars.

Lenovo's next ThinkBook Plus might be more practical, at least if you'e a budding artist. Well-known leak purveyor Evan Blass has shared what he said is an image of a 17-inch ThinkBook Plus model. Unlike the current 13.3-inch system, though, you wouldn't have to flip your machine around to use an e-paper display on the back. Instead, you'd have a pen-capable color display next to the keyboard you could use to draw or take handwritten notes.

Blass didn't share other details, but the 17-inch ThinkBook Plus would seemingly have an extra-wide main display and fit in a full keyboard along with a large trackpad. We'd expect reasonably speedy internals to help drive the second display, much like the vaguely comparable ASUS ZenBook Duo.

It's not certain when this extra-large ThinkBook Plus would ship. Lenovo has historically reserved some of its largest laptop introductions for CES in January, but that doesn't preclude the company from a last-minute launch for the holidays. Either way, the image suggests Lenovo hasn't given up on the Plus concept — if anything, it's exploring new concepts that might prove appealing for creatives and others who shied away in the past.

Large tech companies may soon have to pay significant taxes no matter what tax loopholes they had before. BBC Newsreports G20 leaders have reached an agreement that would set a global minimum tax rate of 15 percent for large companies. The long-in-the-making deal should be official as of today (October 31st) and would be enforced starting in 2023.

The US originally pitched the concept to prevent companies from using creative accounting (such as the "Double Irish arrangement") to avoid paying most of their taxes in the country. Other countries embraced the idea, though, and the Organization for Economic Co-operation and Development (OECD) toldCBC News the move could rake in about $150 billion from corporations around the world.

The deal could discourage tech giants like Amazon, Apple, Google, Meta and Netflix from relying on loopholes to maximize their profits. If the deal collects the promised money, governments could better fund public services and help tackle problems like climate change. 

There are numerous criticisms, however, and not just from those who generally oppose higher taxes. Oxfam, for instance, blasted "generous carve outs" that protected sone income and take 10 years to phase out. The pro-equality group also claimed the deal was "extremely limited" and would affect fewer than 100 companies while generating little money for poorer countries. The arrangement might beat the status quo for G20 nations, but it won't necessarily address some outstanding concerns.

Apple's rumored mixed reality headset may be a boon for VR gaming. In his most recent newsletter, Bloomberg's Mark Gurman claimed Apple is aiming for a headset that can handle "high-quality" VR games with both fast chips and high-res displays. While it's not certain just what chips would be involved, a previous leak mentioned a possible 8K resolution per eye — Apple might not expect games to run at that resolution, but it would hint at serious processing power.

The headset is still poised to arrive "as early as" 2022, Gurman said. He also suggested Apple would eventually follow up the mixed headset with an augmented-reality-only model, but that was "years down the road."

However accurate the claim might be, it's doubtful the mixed reality headset would be meant primarily for gaming The price (rumored to be as high as $3,000) might relegate it to developers and other pros. It wouldn't be a rival to the $299 Quest 2, then. Instead, the report suggests Apple might use this initial headset to pave the way for more affordable wearables where gaming is more realistic.

It's safe to presume Apple is committed to a headset, no matter the end result. Apple has acquired companies and reportedly shuffled executives with mixed reality in mind. This wouldn't just be a side project for the company, even if the mixed reality tech could take years to reach the mainstream. Gaming might play a pivotal role if Apple intends to reach a wider audience.

This may be one of your best chances of scoring a smart speaker or e-reader before the holiday rush. Amazon is selling multiple recent Echo devices (plus a Kindle reader) at very low prices. To start, the fourth-generation Echo speaker is on sale for just $60 (usually $100), or the same as its Prime Day pricing. You can also buy the new Echo Show 5 for an all-time low of $55 (normally $85), while its larger Echo Show 8 counterpart has dropped to $100 (typically $130).

You might also appreciate the Kindle deal if you're a book lover. Amazon is selling the standard Kindle (with ads) for just $50 — that's $40 below its official sticker, and even better than the Prime Day price. You'll get a similar discount on the ad-free version, which sells for $70. Either price drop makes the Kindle an easy choice if you prefer to wind down with a digital book at the end of the day.

The Echo devices are safe choices. The fourth-gen Echo sounds great for the money and boasts a memorable design along with Alexa's healthy ecosystems for smart home devices and skills. The newer Echo Show 5 and 8, meanwhile, build on that Alexa know-how with visuals. The Show 5 fits best as a bedside clock, while the 8 works well for video calls or as a family hub in the kitchen or living room. The main hiccups are simply the interface and streaming app selections — Google has a slight edge in both departments, but that might not matter much if you're mainly using voice commands or checking the news and weather.

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Now that Luigi is part of Lego Super Mario, the toymaker is ready to show the other heroic plumber a little more respect. Lego has introduced a trio of Luigi's Mansion expansion sets that give its namesake star more to do in a game designed with him in mind.

The $30 Lab and Poltergust set helps you get started with Luigi's ghost vacuum, while a $40 Entryway set introduces you to the mansion proper as well as Polterpup and the game series' Boo ghosts. Splurge on the $80 Haunt-and-Seek kit and you can create a full-fledged level, complete with hidden gems and rotating hallways. As you'd expect, you can combine the sets or mix them with other Lego Super Mario packs.

The timing is off. Lego may be announcing the Luigi's Mansion sets on Halloween, but they won't be available until January 1st, 2022. It's a missed opportunity, then, but you might not mind if you or or your kids enjoy the existing Super Mario collections and want more variety. If nothing else, this will provide fond memories for anyone who remembers collecting ghosts in Luigi's games.

NASA's Juno probe has provided a better, deeper look at Jupiter's atmosphere. Researchers have produced the first 3D view of Jupiter's atmospheric layers, illustrating how its turbulent clouds and storms work in greater detail than before. Most notably, it's clearer how cyclones and anticyclones behave. They're much taller than expected, with the Great Red Spot (an anticyclone) running 200 miles deep. They're either warmer or colder at the top depending on their spin, too.

Juno helped fill out the data using a microwave radiometer that offered a peek below the clouds' surfaces. For the Great Red Spot, the team complemented the radiometer data with the gravity signatures from two close passes. The radiometer info also showed Earth-like circulation cells in northern and souther hemispheres, not to mention ocean-like changes in microwave light.

There are still mysteries left, such as the atmospheric mass of the Great Red Spot. With that said, the 3D imagery is already producing a more cohesive picture of how jovian planets like Jupiter behave. It might not take much more effort to solve more of Jupiter's mysteries.

You'll have to go large if you want an Intel-powered Mac desktop. 9to5Macreports Apple has quietly discontinued the 21.5-inch iMac about half a year after introducing the M1 model. The company had been selling a lone dual-core model for $1,099 through a relatively hard-to-find page, but YouTube Tech God noticed that it disappeared sometime on October 29th.

We've asked Apple for comment on the move. The company has a long history of keeping legacy Macs around for a while before silently dropping them, but it seldom elaborates on those decisions. A notable exception came in March this year, when Apple confirmed it was winding down iMac Pro sales.

This won't thrill educational customers that may still want the 21.5-inch iMac for its relatively low price, small size and legacy ports. You'll have to buy at least a 27-inch iMac or a $1,099 legacy Mac mini if you're not ready to leap to Apple Silicon. This does signal Apple's confidence in its processors, though — it clearly believes its mainstream desktop customers are ready to make the switch.

You'll have to wait a little bit longer to watch SpaceX's third crewed NASA mission. NASA has delayed the launch of Crew-3 from early on Halloween to 1:10AM Eastern on November 3rd. The agency pinned the setback on "unfavorable" weather. There probably won't be another delay, though, as officials are predicting an 80 percent chance of good weather for the new date. Live overage of the launch on NASA's channel will start November 2nd at 8:45PM.

Crew-3 will bring NASA astronauts Raja Chari (the mission commander), Tom Marshburn and Kayla Barron to the International Space Station alongside the ESA's Matthias Maurer. They're expected to dock at 11PM Eastern on November 3rd and will stay until late April 2022.

Crewed SpaceX flights are still relatively rare. Crew-1 launched in November 2020, while Crew-2 didn't lift off until April 2021. Crew-3 and the recent all-civilian Inspiration4 mission are steps toward making these occupied flights relatively routine — ideally, they'll soon be as uneventful as SpaceX's other flights.

It hasn't been a good weekend for Roblox players. The Vergenotes that the gaming platform has been down since 7PM Eastern on October 28th (nearly two days as of this writing), with no resolution in sight. It's not clear what prompted the failure beyond an "internal system issue," but Roblox Corporation stressed that it wasn't due to a Chipotle promo that launched just half an hour earlier. This wasn't linked to "any specific experiences or partnerships," Roblox explained.

The promo offers a total $1 million in free Chipotle burritos to players as part of a Halloween event. That could prompt a spike in activity on Roblox, but it's not likely to disrupt a game with over 40 million daily users.

The outage certainly won't help the platform, though. Over half of Roblox players are pre-teens, and its surge during the early pandemic helped fuel high-profile concerts and platform-exclusive games. Failures like this could easily anger kids (and their families) that spend much of their time in Roblox's virtual universe. While the downtime likely won't hurt the platform's long-term reputation, the company clearly can't afford many incidents like this.