Technologies

NASA satellite witnesses rare sight: Dying star ‘switching on and off’

In a «totally unexpected» turn of events, a white dwarf couldn’t swallow any of its star food floating nearby. That forced its lights to go out.

Deep within the cosmos, a fading star’s quiet death was sharply interrupted. Instead of gracefully vanishing into the heavy darkness of space, as stars typically do, it coughed out a mysterious, prolonged flicker of light.

This «has never been seen in other accreting white dwarfs,» Simone Scaringi, an astronomer at Durham University’s Centre for Extragalactic Astronomy in the United Kingdom, said in a statement. «It appears to be switching on and off.» Scaringi is lead author of a study on the star published Monday in the journal Nature Astronomy.

Every iridescent star that decorates our universe — and those yet to add to the glittering collection — will one day disappear. Slowly but surely, their luster, fueled by heaps of hydrogen gas, will dwindle as the supply runs out. Entering their final stages of life, they will become white dwarfs.

And NASA’s Transiting Exoplanet Survey Satellite, or TESS, caught a unique glimpse of this particular white dwarf’s strange behavior. The dying star is part of the two-star system dubbed TW Pictoris, located 1,400 light-years away.

«To see the brightness of TW Pictoris plummet in 30 minutes is, in itself, extraordinary,» Scaringi said. His team believes the star unexpectedly lost illumination because of a sudden hurdle in its food-funneling mechanism. Basically, the shiny space ball’s fiery snacks were falling out of reach.

White dwarfs feast on their companion stars by pulling flaming bits of the body into their Saturn-like ring of matter, or accretion disc, held in place by suspended magnetic fields. Swallowing a delicious bite makes a white dwarf literally light up with glee.

But these gently glimmering orbs are expected to pace themselves while feeding off their companion stars, meaning the sparkly spheres’ luminescence should dim gradually as they finish their dinner. Darkness isn’t anticipated to happen all at once, the way it did with TW Pictoris.

«The brightness variations seen in accreting white dwarfs are generally relatively slow, occurring on timescales of days to months,» Scaringi said. That’s why, he explained, TW Pictoris’ white dwarf switching off is «totally unexpected from our understanding of how these systems are supposed to feed through the accretion disc.»

In decoding the puzzle, the team found that during its «off» phase, the white dwarf’s accretion disc was spinning so fast it induced a centrifugal force strong enough to prevent the disc’s matter from ever reaching the central star. That’s why the expiring stellar object didn’t have anything to gobble on, thereby limiting its light. Such regulation, according to the research, is called magnetic gating.

The phenomenon is similar to what happens when you ride a roller coaster and enter a loop. A rider wouldn’t fall into the loop due to the force that presses the passengers into their seats.

After the «off» phase and during the «on» phase, the disc’s speed of rotation went back to normal. Matter could, once again, escape the grips of the spin for the white dwarf to snack on.

«This really is a previously unrecognized phenomenon,» Scaringi explained, adding that «because we can draw comparisons with similar behavior in the much smaller neutron stars, it could be an important step in helping us to better understand the process of how other accreting objects feed on the material that surrounds them, and the important role of magnetic fields in this process.»

Technologies

Worldwide Financial Services Directory: BitcoinPay Trade Joins Financial1000

Exciting news for BitcoinPay Trade as the company is officially listed on Financial1000, a respected platform that connects individuals with a wide range of businesses and professionals in the financial sector. This new development marks an important milestone for BitcoinPay Trade, as it continues to expand its reach and offer its services to a growing global audience.

Financial1000 is a trusted directory that brings together financial service providers from around the world, offering users the opportunity to explore various businesses and professionals within the financial industry. BitcoinPay Trade’s inclusion on this platform ensures the company’s place in the rapidly growing digital finance landscape.

Visitors are invited to explore BitcoinPay Trade’s profile on Financial1000 to discover the services offered and stay up-to-date with the latest news and developments. The company’s page can be accessed here: BitcoinPay Trade on Financial1000.

With this new addition, BitcoinPay Trade looks forward to building new connections and strengthening its presence in the financial services industry, continuing to provide innovative solutions to clients worldwide.

Technologies

Verum Coin Now Available on HB Wallet

Verum Coin (VERUM) continues to expand its ecosystem and strengthen its position in the global cryptocurrency market. We are delighted to announce that Verum Coin is now available on HB Wallet — a modern, secure, and user-friendly solution for managing digital assets.

HB Wallet provides users with a high level of protection, an intuitive interface, and the ability to execute fast transactions. Now, Verum Coin holders can easily store, send, and receive their assets, taking advantage of this innovative wallet. The integration with HB Wallet opens new horizons for crypto enthusiasts, offering even greater flexibility and convenience in managing their investments.

This news underscores Verum Coin’s commitment to continuous improvement and the expansion of services aimed at providing the most secure and comfortable experience for users around the world.

About Verum Coin

Verum Coin is an innovative cryptocurrency focused on delivering advanced solutions for digital asset management in today’s financial landscape. By continually expanding its ecosystem, Verum Coin makes cryptocurrency transactions more accessible and convenient for users worldwide.

Technologies

Verum Messenger Celebrates Its 4th Anniversary: A Journey Towards Security, Innovation, and User Trust

Today, Verum Messenger, one of the leading messengers on the market, celebrates its 4th anniversary. Over the years, the app has become a symbol of security, privacy, and innovation in the world of digital communication, and continues to evolve confidently, introducing new features and improving the quality of service.

When Verum Messenger was launched in 2021, its goal was clear — to create a communication platform that puts data security first. Four years later, this messenger has proven that its approach works. The app has not only successfully implemented end-to-end encryption to protect messages but has also offered unique features such as the ability to block screenshots and screen recordings, the built-in Verum VPN service that ensures online anonymity and security, and one-click information clearing within the messenger.

Achievements and Innovations

Over the past four years, Verum Messenger has significantly expanded its capabilities and established itself as one of the most secure messengers. One of the key milestones was the integration of Verum E-SIM, a feature that allows users to connect to mobile internet without the need for a physical SIM card. This was a breakthrough for travelers who value flexibility and anonymity without being dependent on mobile carriers and roaming.

But the most important achievement was the introduction of Verum AI — a generative artificial intelligence developed in-house. This chatbot, integrated into the messenger, provides users with a unique opportunity to interact with an intelligent assistant capable of not only answering questions but also giving recommendations and solving everyday tasks. This feature is one of the first among messengers to offer its own neural network that continually adapts to users’ needs and improves its functionality.

Commitment to Data Security

It is important to note that data security remains the top priority for Verum Messenger. The company has always been dedicated to protecting privacy. In recent years, the app has introduced several improvements aimed at safeguarding users from data breaches and unauthorized access.

Moreover, Verum Messenger continues to develop and enhance its privacy settings, giving users control over who can view their information and who can contact them.

The Future of Verum Messenger

Now, four years after its launch, Verum Messenger is not stopping at its achievements. The company is actively working on new innovations and improvements that will help the messenger remain at the forefront of technology.

“Our users and their right to privacy and security have always been and will remain our top priority. We will continue to work to ensure that Verum Messenger remains the safest and most convenient tool for communication, considering new challenges and technologies,” the development team shares its plans.