Technology News

Action N one Npad Pro 4G LTE Android 12 Tablet

Action > N-one Npad Pro 4G LTE Android 12 Tablet PC, 10.36 inch 2000×1200 2K FHD IPS Screen, UNISOC T616 Octa-Core, 8GB RAM 128GB ROM with Stand, Movie – Promo Code Gearbest, BangGood , promo code Cdiscount or AliExpres – Techno-Science.net

highlights

The latest high-efficiency processor
It is equipped with the UNISOC T616 eight-core processor with two high-energy ARM-A75 cores and 6 ARM-A55 chipsets and an operating frequency of up to 2.0. GHz, which offers a much smoother experience when you play video games (video contains all the techniques, technologies that allow recording as well…) or when you multitask at work. The Antutu benchmark of the T616 is over 25W, more powerful than the T22’s 618W values.
Great visualization know-how
That includes a ten. 36-inch in-cell display with 2000×1200 IPS resolution, N-one NPad Pro introduces a new screen (Edge-to-Edge) for even more real properties on the screen. This Android tablet offers a world (which word can mean world:) without limits of unimaginable colors and legibility.
Latest Android 12 operating system
Android 12 enables a more private, secure, and accessible experience. These include a completely redesigned user interface for you, new privacy options designed for your security and management, and a more transparent gameplay customization strategy.
Widevine L1 support
With Widevine L1, N-one NPad Pro allows you to stream 1080p content (1080p is a common Full HD video resolution (CIF) of 1920×1080 pixels in scan…) or High Definition (A definition is a discourse that says what a thing is or what a name means, hence the increased…) for cinematic viewing experiences.
Massive capacity (The word massive can be used as:)
With 8GB LPDDR4 RAM, you can easily switch between apps. With 128GB ROM UFS you can sell your video games, pictures and films. Expand with a 1TB micro SD card for much more storage.
Energy (In a general sense, energy means anything that enables you to do work, generate energy, etc.) to give you pleasure for longer
The N-one NPad Pro has a 6600mAh battery capacity that supports all day, enough for 8 hours of video playback. Experience fast 18W USB PD charging, the NPad Pro will be recharged in a short time (time is a human-designed concept to grasp this…).

Action N one Npad Pro 4G LTE Android 12 Tablet1679547745 97 Action N one Npad Pro 4G LTE Android 12 Tablet1679547746 197 Action N one Npad Pro 4G LTE Android 12 Tablet1679547748 44 Action N one Npad Pro 4G LTE Android 12 Tablet1679547750 52 Action N one Npad Pro 4G LTE Android 12 Tablet1679547751 579 Action N one Npad Pro 4G LTE Android 12 Tablet1679547753 270 Action N one Npad Pro 4G LTE Android 12 Tablet1679547754 948 Action N one Npad Pro 4G LTE Android 12 Tablet1679547756 914 Action N one Npad Pro 4G LTE Android 12 Tablet1679547757 726 Action N one Npad Pro 4G LTE Android 12 Tablet1679547759 993 Action N one Npad Pro 4G LTE Android 12 Tablet1679547760 43 Action N one Npad Pro 4G LTE Android 12 Tablet1679547762 940 Action N one Npad Pro 4G LTE Android 12 Tablet1679547763 779 Action N one Npad Pro 4G LTE Android 12 Tablet

specification

GenerallyBrand: N-one
Model: Npad Pro
Operating system: Android 12
Processor: Unisoc Tiger T616
Graphics chip: G57
storageMemory: 8GB
Hard disk space (A hard disk is a magnetic mass storage device that is mainly used in…): 128 GB
Network (A computer network is a set of devices that are connected to each other to exchange data…)Wi-Fi (Wi-Fi or Wi-Fi (pronounced /wifi/) is a wireless computer network technology implemented in…): 802.11a/b/g/n/ac Band: 2.4 GHz/5 GHz
Bluetooth (Bluetooth is a telecommunications industry specification. It uses…): BT5.0
Camera (The term camera comes from the Latin: chamber, for camera. It denotes a device…)Front camera: 5 MP
Rear camera: 13 MP
connectivity

Type-C (USB2.0) *1
A dual card slot, supports two Nano SIM cards or Nano SIM card + MicroSD card

Power (The word power is used in several areas with a specific meaning:)Battery: 6600mAh / 3.8V
Power Device Type: Type-C
Charging voltage: 9V2A
Multimedia (The word multimedia appeared in the late 1980s when CD-ROMs became…)Video format: AVI / RMVB / MKV / WMV / MOV / MP4 / PMP (Project Management Professional or PMP is a certification in project management including…) / MPEG / MPG / FLV / ASF / TS / TP / 3GP / MPG
Audio format: MP3/WMA/WAV/APE/AAC/FLAC/OGG
Image format: JPG/BMP/PNG/GIF
E-Book format: WORD/EXCEL/PDF/TXT/CHM/HTML
Other propertiesSpeaker (A speaker is an electromechanical transducer designed to produce sound from a…) / MIC: built-in stereo speakers and microphone (A microphone (or simple micro from Apocope) is a wave conversion device…)
Languages: Multilingual
Dimensions (In general, dimension refers to size; the dimensions of a room…)Product Size: 244*154*7.5mm
Product Weight: 450g
content of the package1x Tablet PC
1 x User Manual (English, French, German, Russian, Spanish, Italian, Japanese, Korean, Simplified Chinese, 8 languages)
1x adapter
1 x Type-C Cable
1x stand
1 x Tempered Foil

Action > N-one Npad Pro 4G LTE Android 12 Tablet PC, 10.36 inch 2000×1200 2K FHD IPS Screen, UNISOC T616 Octa-Core, 8GB RAM 128GB ROM with Stand, Movie – Promo Code Gearbest, BangGood , promo code Cdiscount or AliExpres – Techno-Science.net Read More »

The Webb telescope discovers an exoplanet with grainy clouds

The Webb telescope discovers an exoplanet with “grainy” clouds – Dfdanse

The Webb Space Telescope switched its infrared to an extraterrestrial view and they found thick clouds swirling in its atmosphere. A strange world.

The planet — VHS 1256b — has a 22-hour day but is unusually distant from the two orbiting stars that orbit together at the center of the system. Astronomers used Webb’s Near Infrared Spectrograph (NIRSpec) and Mid-Infrared Instrument (MIRI) to observe the planet and they found it. Looks like there is an upper atmosphere. illegal clouds. persistence of smoke. Coarse clouds are visible deep in the planet. More sediment. Unlike Earth’s clouds, the exoplanet’s clouds are as hot as a candle flame, according to the Space Telescope Science Institute. release.

A NASA poster describes clouds as “swirling” and “pushing” and notes that changes in brightness are caused by cloud movement. “It is so dramatic that it is the most heterogeneous planetary-mass object known to date.

VHS 1256b is four times more distant than Pluto Sun, which is one of its 10,000 Earth years.

Astronomers also found clear signs of water, methane, and carbon monoxide, as well as some symptoms of carbon dioxide. How these molecules appear on the planet – in which clouds they swirl or how deep in the planet they are – is still unclear.

G/O Media may receive a commission

“High-resolution data from the internet confirms our current models,” said Polychronis Batapis, an astronomer at ETH Zurich in Switzerland. STSCI Publication “Current models can include a feature or two, but not as much as Webb showed us that target. »

This isn’t Webb’s first foray into exoplanet observation. The $10 billion space observatory is still in its first year of scientific observations, but it has already released a Dazzling Portfolio of Space Images.

A spectrum of exoplanets is included in A Testimony to the Importance of Extraterrestrial Worlds with Webb’s Early Scientific Observational Publications. of the work Scientific goals. Webb discovered his first carbon dioxide on Another World in August. The first images of the exoplanet followed in September. November is said to express a noxious extraterrestrial atmosphere, and a brand new exoplanet was discovered in January.

VHS 1256b is another piece of the exoplanet puzzle. Astronomically, the planet is relatively young. 150 million years (now we’re talking about Earth years again). For comparison: Our planet is about 4.6 billion years old.

As VHS 1256b ages, scientists believe it will cool and the thick cloud cover in its sky may clear. Until then, the planet is in its own hot, cloudy chaos.

Also: New web film is a spectacular look at the final phase of a star

The Webb telescope discovers an exoplanet with “grainy” clouds – Dfdanse Read More »

Amazon Luna cloud based video game service is now available nationwide

Amazon Luna cloud-based video game service is now available nationwide – Le Journal de Montréal

Amazon has announced that its cloud gaming service Luna is now available in Canada. This service gives users instant access to console-quality games on their existing devices. According to Amazon, Luna is an online gaming service with a wide range of titles for all types of gamers.

Designed for cloud computing, the Luna controller connects directly to the cloud via Wi-Fi or Bluetooth to minimize latency.

Cloud-based video game service Amazon Luna is now available domestically

Prime or Luna+

Luna has a selection of games for all types of gamers, from mainstream games to retro classics and AAA titles. Prime members can access a rotating selection of games each month at no additional cost, while Luna+ subscribers can access a growing collection of games across all genres, including titles like Sonic Mania Plus, Beach Buggy Racing 2 and Bob the Beast. Sponge: Battle for Bikini Bottom – Rehydrated and Resident Evil 2.

Three monthly subscription options are offered: Luna+ at $12.99, Ubisoft+ at $22.99, and Jackbox Games at $6.49. Users can also link their Ubisoft Connect account to Luna and play a selection of Ubisoft PC games they already own.

Cloud-based video game service Amazon Luna is now available domestically

With an iPhone or Android as a controller

Luna regularly releases new features and content, including the Luna Virtual Controller, which allows users to play Luna on Fire TV simply by using their iPhone or Android phone as a controller. Luna Couch also allows users to play local games cooperatively with their friends on Luna even when they are physically apart.

Daniel Rausch, Vice President of Amazon Entertainment Devices and Services, said, “Luna makes on-demand video gaming easier and more accessible by providing instant access to console-like quality games on devices customers already own. He also added that Amazon is committed to making gaming more convenient and fun for as many players as possible.”

Cloud-based video game service Amazon Luna is now available domestically

Amazon Luna cloud-based video game service is now available nationwide – Le Journal de Montréal Read More »

AI generated text could increase exposure to threats identifying malicious or

Genius in a bottle: Stanford researchers replicated AI chatbot ChatGPT for less than $600, but quickly took it offline due to its issues

AI generated text could increase exposure to threats identifying malicious or
Stanford University researchers have developed their own Alpaca AI model, which is similar to ChatGPT. This model would have cost only $600 to train since it was built on Meta’s open-source LLaMA platform. Their experience shows that new advanced AI systems can be easily replicated and do not even require huge costs. However, a new report this week indicates that researchers have taken their AI offline due to severe “hallucinations” and increased costs. Also, the researchers reportedly failed to get the AI ​​to behave well.

Google, Meta, OpenAI, etc. and Microsoft have each released at least one advanced AI system in recent years, and in each case the cost of the product is in the millions of dollars. For example, Microsoft invested several billion dollars in OpenAI this year to maintain its exclusive access to advanced language models developed by the AI ​​lab. In return, this partnership enables OpenAI to leverage the computing power of Microsoft’s Azure cloud required to run ChatGPT and other products. OpenAI can thus optimize its spending on digital infrastructure.

Recently, however, researchers at Stanford University announced that they have developed a cheap AI model that works just like OpenAI’s ChatGPT at just $600. According to the study report, the base cost the researchers $500, and they spent about $100 to create the AI, which took eight computers with 80GB NVIDIA A100 accelerators for three hours; they have “rented” this service in the cloud infrastructure. The researchers based their AI on the LLaMA 7B open language model, which is the smallest and cheapest of the LLaMA series developed by Meta. They named their model AI Alpaca.

Genius in a bottle Stanford researchers replicated AI chatbot ChatGPT

Its capabilities are actually quite limited and it performs worse than ChatGPT on most tasks. This is not surprising as training the GPT AI models took more time and resources. ChatGPT has read billions of books, while Alpaca has learned a few questions and answers from humans, albeit few. On the other hand, the AI ​​model Alpaca does some tasks quite well, and sometimes even better than its rival ChatGPT. In the first test, Alpaca would have passed 90 tests (writing emails, posting on social media, helping at work, etc.), while ChatGPT would have passed only 89 tests.

The researchers wrote: Given the small size of the model and the modest amount of instruction trace data, we were quite surprised by this result. In addition to using this set of static evaluations, we also tested the Alpaca model interactively and found that Alpaca often behaves similarly to text-davinci-003 (GPT-3.5) on a diverse set in between. We recognize that our review may be limited in scope and variety. The team believes it probably would have been cheaper if they tried to streamline the process.

The team has published on Github the 52,000 questions used in this study, along with code to generate others and code used to refine the LLaMA model. There are other tweaks to ensure this model works safely and ethically. So what’s stopping someone from building their own AI for a hundred euros and training it at will? In theory, anyone with the appropriate technical training and at least $600 can replicate the Stanford researchers’ experiment. But in reality things are a bit complicated.

The OpenAI license does not allow, or rather forbids, using data from their models to develop competing systems. Meta, on the other hand, grants researchers and academics a non-commercial license to use its models, although this is a moot point since the entire LLaMA model was leaked on 4chan a week after it was announced. Another group claims to have successfully eliminated the cost of the cloud by releasing additional code on Github that can run on a Raspberry Pi and complete the training process in five hours using a single high-end Nvidia RTX 4090 graphics card.

However, a report published this week says researchers have taken alpaca offline due to increased costs, safety concerns and “hallucinations,” a term the AI ​​community has struggled with. Agreement when a chatbot confidently claims false information and dreams of a fact does not exist. In a press release announcing the first Alpaca launch, lead author Rohan Taori, a Stanford computer science graduate student, acknowledged that there are risks in a public test. However, it’s unclear what exactly went wrong during Alpaca’s interactive demo.

The original purpose of releasing a demo was to spread our research in an accessible way. “We believe we’ve largely achieved that goal, and given the cost of hosting and the inadequacies of our content filters, we’ve decided to withdraw the demo,” said a spokesman for Stanford Human-Centered Artificial Intelligence (Stanford HAI). The department did not immediately respond to a request for comment. You can no longer access a working copy of Alpaca, but the underlying code and data is still live on GitHub.

We encourage users to help us identify new types of bugs by reporting them in the web demo. Overall, we hope that the release of alpaca will facilitate further research into instruction-following patterns and how they align with human values,” the researchers said in the release. Despite its apparent failures, alpaca has some interesting aspects that make the research project worthwhile. Particularly noteworthy are the low acquisition costs in contrast to the multi-million dollar supercomputers from Microsoft.

What does it all mean? This means that an unlimited number of unverified language models can now be implemented, especially by people with machine learning skills who don’t care about terms of service or software piracy – for next to nothing. If a lot of time and money is invested in the post-training phase, and that work can more or less be stolen in the time it takes to answer 50 or 100,000 questions, does it make sense for companies to keep spending that money?

Besides, the impressive abilities of this software could surely come in handy for an authoritarian regime, phishing operation, spammer or any other dubious actor. The genie is out of the bottle and seems extremely easy to reproduce and bring back. Hats off, the experts warn.

Sources: Stanford researchers press release, project GitHub repository, AlpacaPi

And you ?

NVIDIAs NeRF AI can reconstruct a 3D scene from a What is your opinion on the topic?

NVIDIAs NeRF AI can reconstruct a 3D scene from a What do you think of the insignificant cost of creating and training the alpaca AI model?

NVIDIAs NeRF AI can reconstruct a 3D scene from a If it’s so easy to replicate and train ChatGPT, why is Microsoft spending billions on it?

NVIDIAs NeRF AI can reconstruct a 3D scene from a Do you think there is an advantage to injecting so much money?

NVIDIAs NeRF AI can reconstruct a 3D scene from a Do you think it’s a good idea to make Alpaca’s code and underlying data public?

NVIDIAs NeRF AI can reconstruct a 3D scene from a Do you think this could lead to a proliferation of amateur AI models in the next month?

NVIDIAs NeRF AI can reconstruct a 3D scene from a What impact could such a situation have on the internet and the AI ​​sector?

See also

NVIDIAs NeRF AI can reconstruct a 3D scene from a A search using Google’s Bard and Microsoft’s ChatGPT will likely cost ten times more than a keyword search, which could yield billions in rewards

NVIDIAs NeRF AI can reconstruct a 3D scene from a Google engineers created ChatGPT-like AI years ago, but executives have blocked it for security reasons. Your work now underpins Bard

NVIDIAs NeRF AI can reconstruct a 3D scene from a Google opens access to its competitor Microsoft’s ChatGPT and announces the public launch of its chatbot Bard

NVIDIAs NeRF AI can reconstruct a 3D scene from a Bill Gates says AI boom threatens Google’s search engine profits, but Bing Chat and Bard Search are costing billions of dollars

Genius in a bottle: Stanford researchers replicated AI chatbot ChatGPT for less than $600, but quickly took it offline due to its issues Read More »

1679536945 This web browser includes messaging and VPN for free in

This web browser includes messaging and VPN for free in its interface – François Charron

Curious to try a web browser other than Chrome and Safari? Check out Opera, which offers some great free features like built-in email, workspaces, and more, along with privacy tools like a free VPN.

We know Chrome, the browser from Google, Safari, the browser from Apple, Mozilla Firefox, as well as Edge, the browser from Microsoft, but there are many more.

We looked at Opera, a browser whose offering particularly stands out in terms of privacy and security, but which is just as interesting when you look at the many free customization options and productivity.

Data and privacy protection and free VPN

The Opera browser is particularly notable for its privacy and security features.

First, it’s quite interesting that Opera includes a free browser VPN. It provides privacy and security for our browsing traffic when enabled.

It’s free, built right into the Opera browser and doesn’t require a subscription from us.

On the other hand, we must understand that this only allows us to encrypt our Internet connection and encrypt the information that is exchanged between our computer and the page we are consulting.

Opera Browser free VPN option

Opera’s VPN allows us to protect our information when browsing in public.

That’s good enough, but I mean it’s not the kind of VPN that allows us to bypass geo-restrictions and enjoy content from all over the world.

Opera Free VPN has 3 general locations and 100+ high-speed servers, which is handy for protecting our information in public, but no more.

Another great feature: the Opera browser has a tracker blocker. It helps prevent analytical scripts, cryptojacking, tracking pixels, and other data collection methods used for targeted advertising.

In addition, Opera has also integrated an ad blocker into its browser. On the one hand, it protects against malicious ads, but it’s also a double-edged sword, especially for independent creators like me.

Unfortunately, as a freelance website publisher, this is the kind of feature that is killing us. Of course it’s boring, but we need ad revenue to offer free content.

Good point: Opera’s ad blocker allows us to unblock ads from any website, but ideally it’s not a feature I encourage enabling.

Lots of cool features included for free

In addition to its options for protecting our private data, Opera stands out for its unique features that we love to use for both work and everyday life.

Thanks to its sidebar, you can chat with popular chat applications and browse the web at the same time, since the main messaging services can be integrated with Opera.

Among the messaging services to integrate we find:

  • tick tock;
  • Twitter;
  • Telegram;
  • Whatsapp;
  • Facebook Messenger.

It’s pretty handy for work because it means we don’t have to be interrupted by our phone or social networks to take our messages.

In addition to chatting, we can also integrate our streaming subscription into the sidebar. It’s really convenient and all the major players are supported, Apple Music, Spotufy, YouTube Music, Deezer, Tidal and SoundCloud.

Internal messenger in opera browser Facebook Messenger

Opera allows us to add messaging and music directly to its browser.

Speaking of work, Opera has a feature called Space that allows us to keep our tabs in separate spaces to better organize our browsing.

It’s really convenient if you use the same computer for work and for everyday life. That means we can classify our tabs based on our interests like work, vacation planning, hobbies, etc.

Spaces in Opera browser

We can easily organize all our tabs according to our interests in the same browser.

Another interesting feature of Opera: Pinboards. Similar to Pinterest, here we can collect photos, links, music, files and notes directly in the browser without a third-party app.

These collections can be used to plan trips, create spreadsheets, compare purchases, etc. and can also be shared with our friends. If they also use Opera, they can even leave reactions in the form of emojis.

Multiple versions for multiple needs

Opera is available online completely free of charge on their website. What is interesting is that the company offers several versions of its browser to meet different needs.

There’s of course the classic version that allows us to sync our data and send files between Opera on Mac, Windows, Linux, iOS, Android and Chromebook.

Different versions of Opera Browser Gamer Bitcoin

There are several versions of Opera including Classic, Gamer and Crypto.

On the other hand, there’s a version entirely dedicated to Chromebooks, with features designed specifically for them.

There is also a version for gamers called Opera GX. Among other things, this allows us to set CPU, RAM and network usage limits and use Discord and Twitch from the sidebar.

Finally, there is a “mini” version that stores data, as well as a crypto version that unlocks access to Web3 and integrates a native multi-chain wallet with no incarceration.

In short, for whatever reason, it’s still a totally free alternative, so you don’t lose anything by downloading and trying it, even if you have to go back to another browser if you don’t like the features it offers.

logo

This column contains affiliate links. Learn more.

This web browser includes messaging and VPN for free in its interface – François Charron Read More »

1679534179 quot10 years is enough to develop a competitor to Call

"10 years is enough to develop a competitor to Call of Duty" : Microsoft challenges Sony – jeuxvideo.com

News game “10 years is enough to develop a competitor to Call of Duty”: Microsoft challenges Sony

Published on 03/22/2023 at 21:55

Share :

The raging war between Microsoft and Sony is in full swing! Even today, the Xbox brand has directly challenged PlayStation!

Microsoft VS Sony, Round 2!

Ever since Microsoft announced plans to buy Activision/Blizzard for $68.7 billion, Sony has been on the defensive for fear of losing one of its flagship video game licenses. Players will then witness what looks like a console war, but between two giants of the video game industry. Even today, as investigations continue as to whether or not the acquisition can go ahead, Microsoft is taking the PlayStation brand to the UK Competition and Markets Authority (CMA).

Indeed, after Sony more or less rejected an agreement that would have allowed the next Call of Duty games to land on PlayStation consoles now Microsoft is losing patience: it is directly challenging the Japanese manufacturer to create its own Call of Duty.

A period of 10 years is enough for Sony, as the leading console publisher and platform, to develop alternatives to Call of Duty. Microsoft

"10 years is enough to develop a competitor to Call of Duty" : Microsoft challenges Sony

Call of Duty is above all!

This attack is obviously not trivial, because if Sony is currently opposed to Microsoft’s acquisition of Activision/Blizzard, it is for fear of losing the Call of Duty license in the future, and with it consumers.

Next to, The Japanese giant was quick to respond to the Xbox brand, simply stating that it was impossible to replace an established license like Call of Duty. At the same time, Sony adds that the franchise is “essential”, it is a “blockbuster that has no rival”.

It is not yet known if Sony will take back and accept the proposed 10-year Call of Duty games on PlayStation. Note, however, that the CMA will start on the 26th. In other words, it will happen sooner than expected!

About Call of Duty Modern Warfare II

"10 years is enough to develop a competitor to Call of Duty" : Microsoft challenges Sony – jeuxvideo.com Read More »

1679531413 Hellblade 2 No date yet but a stunningly realistic video

Hellblade 2: No date yet, but a stunningly realistic video

Always stingy with information about Senua’s Saga: Hellblade 2, Ninja Theory still used the Game Developers Conference to release a new video to get people talking about their game.

Hellblade 2 aims for photorealism

Ever since the game was announced three years ago, we’ve known that Ninja Theory aims for excellence in terms of graphics and sound in Senua’s Saga: Hellblade 2. We’ve already seen several photorealistic environments in-game, but this is a technical demo developers are sharing today at GDC 2023.

Hellblade 2 No date yet but a stunningly realistic video

We’re pushing the boundaries of real-time facial animation in Senua’s Saga: Hellblade II as shown at GDC 2023 with Unreal Engine.

While the game’s first videos were technically pretty impressive, what’s being released today pushes the hyperrealism of rendering a face in a video game even further.

Once again we find the heroine of Hellblade 2 and at the same time the larger than life face of the actress Melina Jürgens. The lip-sync still gives away the fact that we’re in a video game, but the overall quality of the animations remains largely to be welcomed.

At the moment, Hellblade 2 doesn’t have a release date yet, but many are hoping that it will be announced during the Xbox E3 2023 conference, which will take place on June 11th. In the meantime, we must continue to arm ourselves with patience.

https://www.youtube.com/watch?v=K1qG8pREFkA

Hellblade 2: No date yet, but a stunningly realistic video Read More »

The visit to the strange interstellar object “Oumuamua” finds an explanation according to a study – Le Figaro

In 2017, the mysterious bolide had so stunned astrophysicists that some hypothesized an alien spacecraft.

By Le Figaro with AFP

Published on 03/22/2023 at 21:08

This content is not accessible to all.

Artist’s impression of the first interstellar asteroid named “Oumuamua”, from the European Southern Observatory, November 20, 2017. M. KORNMESSER / AFP

The passage of a mysterious bolide through our solar system in 2017 had stunned astrophysicists, one of whom went so far as to see it as alien technology. A study published Wednesday, March 22 offers a “non-alien” explanation for the exotic visit.

“Oumuamua” (which means “scout” in Hawaiian) was spotted by a telescope in Hawaii and was hurtling so fast it could only have come from another star system, and this was the first time. The discovery has upset the astronomical community, which has long been searching for comet-like objects entering our solar system from the far reaches of space.

This content is not accessible to all.

A strange object

Except that Oumuamua didn’t look like the usual comets: it didn’t have that characteristic hairiness formed by its immense halo of gas and dust as it approached the Sun. The interstellar visitor, which is about a hundred meters wide, was also notable for its brilliance and a large variation in brightness, which gave the impression of a metallic object rotating on its own.

But even stranger, after orbiting the sun, ‘Oumuamua accelerated and went off course, propelled by a mysterious force that ejected it from the solar system. The scientists were stunned, and ended up with four months of incomplete and seemingly conflicting data they were trying to figure out. A whole series of theories arose from this. Some “were beyond imagination,” Jennifer Bergner, an astrochemist at the University of California, Berkeley, who co-authored the study published in Nature, told AFP.

Trapped hydrogen is simply the most general explanation.

Darryl Seligman, researcher at Cornell University and co-author of the study

According to his explanation, regardless of its origin, Oumuamua is a water-rich, comet-like object. During its journey through interstellar space, it was exposed to cosmic rays that bombarded the water and released hydrogen, which became trapped in the object’s body.

As the fireball neared the sun, the heat in turn released the trapped hydrogen and acted as an “engine” that sent it on an unexpected course. “Trapped hydrogen is simply the most general explanation,” explains Darryl Seligman of Cornell University and co-author of the study in a press release. This work “provides without a doubt the first simple and realistic explanation of the peculiarities of this object,” commented Marco Micheli, astronomer at the European Space Agency (ESA).

” ALSO READ – The Asteroid Ryugu, Witness the First Moments of the Solar System

An alien ship

But not everyone agrees with these conclusions. Starting with Avi Loeb, former director of Harvard University’s astronomy department: the eminent scientist had argued that the most believable scenario is that ‘Oumuamua is an extraterrestrial ship. A controversial thesis he defended in a 2021 book entitled The first sign of extraterrestrial intelligent life.

This content is not accessible to all.

Asked by AFP about studying nature, the astrophysicist confirms that saying a comet has no tail “is like saying an elephant is a zebra with no stripes”. He recalls that Comet 2I/Borisov, the second visitor from outside the solar system discovered in 2019, had a long dusty hair. Answer from Jennifer Bergner: If Oumuamua doesn’t have a tail, it’s probably because it’s much smaller than any comet observed so far, including 2I/Borisov.

” ALSO READ – James Webb Telescope, Biodiversity Agreement, Paxlovid … Key Science Advances of 2022

Observations in 2025

The situation could change soon. Observations from the Vera C. Rubin Telescope in Chile, scheduled to begin in 2025, are expected to discover many new comets both inside and outside the solar system. If the smaller signs show them releasing trapped hydrogen and lacking a tail, like Oumuamua, that would confirm the theory, the astrochemist added.

As for the possibility of extraterrestrial intelligent life, “it all depends on the level of evidence that is required” to invoke it, the scientist comments. “We will never know exactly what Oumuamua was, we missed our chance. But for now, I think we have a compelling non-alien explanation,” she concludes.

The visit to the strange interstellar object “Oumuamua” finds an explanation according to a study – Le Figaro Read More »