Technologies

Jupiter’s Moon Callisto Has a Whole Lot of Oxygen Scientists Struggle to Explain

A recent analysis finds up to 1,000 times more molecular oxygen than can be explained by prevailing theories about where it comes from.

Jupiter’s four largest moons are some of the solar system’s most compelling worlds. Io is dotted with active volcanoes, and Europa hides a subsurface ocean many want to check for alien life. Ganymede is the largest moon in the solar system, and Callisto is the system’s most heavily cratered object. Callisto is also home to an emerging mystery: The moon’s thick atmosphere holds a surprising amount of oxygen, and scientists aren’t sure why.

Observers have known about the presence of abundant molecular oxygen at Callisto for a while, with the working assumption being that the influence of Jupiter’s powerful magnetosphere could be knocking molecules of water, hydrogen and oxygen out from Callisto’s icy surface and into the atmosphere.

But when a team of researchers ran the numbers, they found that Jupiter’s magnetism can’t fully explain the amount of molecular oxygen around Callisto.

«There’s a huge discrepancy,» said Shane Carberry Mogan, lead author on a paper about the findings published late last month in the journal JGR Planets. «We were off by something like two orders of magnitude to even three orders of magnitude.»

For the layperson, that means there is 100 to 1,000 times as much molecular oxygen present in Callisto’s atmosphere as the scientists would expect to find if Jupiter’s magnetosphere stripping it out of the icy surface were the sole source.

The discovery of so much oxygen on an alien world may sound like a boon for the possibility that Callisto may support life, but the frozen world is probably far too cold for life as we know it. That said, plentiful oxygen could be useful in generations to cometo explorers who may be able to use it for fuel and life support while traveling around deep space.

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It isn’t clear what’s happening at Callisto to produce so much oxygen, but Carberry Mogan hopes to get a better understanding of processes active in the moon’s surface that may yield an explanation or clues.

«That’s probably Callisto’s most enigmatic feature is its surface,» said Carberry Mogan, who’s a postdoctoral researcher in planetary science at the University of California at Berkeley. «It’s supposed to be an icy body, but when you look at it, it’s mostly this dark surface, anywhere from millimeters to kilometers deep.»

It’s still up for debate whether Callisto’s surface is more rock or ice. The dark material on its surface could also be ice-rich, providing a plentiful source for the mysterious amount of oxygen in the atmosphere.

For help with the mystery, Carberry Mogan is looking to upcoming robotic missions like ESA’s Juice and NASA’s Europa Clipper, which may swing close enough to Callisto to gather new data that could shed light on the puzzle.

«It’s really perplexing,» he said. «The next step is to figure out why there’s this gap between the source [of oxygen] and the observation.»

Technologies

Verum Messenger Introduces Built-In Verum Chess

Verum Messenger has released a new update for iOS, iPadOS, and macOS, adding another feature to its growing ecosystem — Verum Chess. Users can now play chess directly inside the messenger without switching between different applications.

The new feature allows users to start a game in just a few taps while reinforcing Verum’s vision of a unified digital environment where communication and everyday services come together in a single platform.

Verum Messenger continues to evolve into a multifunctional ecosystem that combines secure chats and calls, AI tools, a built-in VPN, anonymous email, eSIM, financial services, cryptocurrency features, and offline communication. With the introduction of Verum Chess, the platform now also offers a new way for users to interact and spend time together without leaving the app.

The update is now available for iPhone, iPad, and Mac on the App Store.

Technologies

Episode 3 of the VERUM AI Mini-Series Is Now Available

Verum Messenger has released the third episode of its AI mini-series, SHADOWS, created using Verum AI.

The new episode, titled «Ghost Money,» continues the story of the conflict between a team of heroes and the Omega corporation, which seeks to take control of digital communications. This time, the focus shifts to anonymous payments and financial freedom, revealing how privacy can extend beyond messaging.

Like the previous episodes, the new release not only advances the storyline but also showcases the capabilities of the Verum ecosystem, highlighting technologies designed for secure communication and digital privacy.

The mini-series consists of seven episodes, released gradually across Verum Messenger’s social media channels.

Episode 3 is now available. Stay tuned for the next chapter.

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Technologies

Verum Finance Now Available for Mac, Expanding the Verum Ecosystem on Desktop

Verum has officially released Verum Finance for macOS, bringing its financial platform to the Mac and expanding access to the Verum ecosystem across Apple’s devices. The launch allows users to manage their finances from desktop while enjoying the same secure and seamless experience available on iPhone and iPad.

The new Mac version includes the full range of Verum Finance features, including balance management, instant transfers to other Verum users, debit card management, Apple Pay support, asset exchange, and transaction history — all optimized for the macOS experience.

Verum Finance can be used as a standalone application or alongside Verum Messenger. Users who sign in with their Verum Messenger account automatically synchronize their balances, settings, and account data across devices, ensuring a consistent experience throughout the Verum ecosystem.

The macOS release further strengthens Verum’s vision of creating an integrated digital platform where communication and financial services work together. Verum Messenger, which is also available for Mac, complements the ecosystem with encrypted messaging, voice and video calls, VPN, eSIM, anonymous email, AI-powered tools, offline communication capabilities, and cryptocurrency features.

With both Verum Messenger and Verum Finance now available across iPhone, iPad, and Mac, users can access secure communication and financial services wherever they work.

Verum Finance for Mac is available now through the Mac App Store.

Verum Finance for macOS: https://apps.apple.com/us/app/verum-finance/id6774245148
Verum Finance: https://finance.verum.im
Verum Messenger: https://verum.im