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Submission + - Mozilla Thunderbolt is an open-source AI client focused on control and self-host (nerds.xyz)

Submitted by BrianFagioli
BrianFagioli writes: Mozillaâ(TM)s email subsidiary MZLA Technologies just introduced Thunderbolt, an open-source AI client aimed at organizations that want to run AI on their own infrastructure instead of relying entirely on cloud services. The idea is to give companies full control over their data, models, and workflows while still offering things like chat, research tools, automation, and integration with enterprise systems through the Haystack AI framework. Native apps are planned for Windows, macOS, Linux, iOS, and Android. Personally, I like the self-hosted concept, but the name âoeThunderboltâ feels like a miss since there are already a ton of unrelated tech products using that name.

Submission + - Another large Black hole in "our" Galaxy (arxiv.org)

Submitted by RockDoctor
RockDoctor writes: A recent paper on ArXiv reports a novel idea about the central regions of "our" galaxy.

Remember the hoopla a few years ago about radio-astronomical observations producing an "image" of our central black hole — or rather, an image of the accretion disc around the black hole — long designated by astronomers as "Sagittarius A*" (or SGR-A*)? If you remember the image published then, one thing should be striking — it's not very symmetrical. If you think about viewing a spinning object, then you'd expect to see something with a "mirror" symmetry plane where we would see the rotation axis (if someone had marked it). If anything, that published image has three bright spots on a fainter ring. And the spots are not even approximately the same brightness.

This paper suggests that the image we see is the result of the light (radio waves) from SGR-A* being "lensed" by another black hole, near (but not quite on) the line of sight between SGR-A* and us. By various modelling approaches, they then refine this idea to a "best-fit" of a black hole with mass around 1000 times the Sun, orbiting between the distance of the closest-observed star to SGR-A* ("S2" — most imaginative name, ever!), and around 10 times that distance. That's far enough to make a strong interaction with "S2" unlikely within the lifetime of S2 before it's accretion onto SGR-A*.)

The region around SGR-A* is crowded. Within 25 parsecs (~80 light years, the distance to Regulus [in the constellation Leo] or Merak [in the Great Bear]) there is around 4 times more mass in several millions of "normal" stars than in the SGR-A* black hole. Finding a large (not "super massive") black hole in such a concentration of matter shouldn't surprise anyone.

This proposed black hole is larger than anything which has been detected by gravitational waves (yet) ; but not immensely larger — only a factor of 15 or so. (The authors also anticipate the "what about these big black holes spiralling together?" question : quote "and the amplitude of gravitational waves generated by the binary black holes is negligible.")

Being so close to SGR-A*, the proposed black hole is likely to be moving rapidly across our line of sight. At the distance of "S2" it's orbital period would be around 26 years (but the "new" black hole is probably further out than than that). Which might be an explanation for some of the variability and "flickering" reported for SGR-A* ever since it's discovery.

As always, more observations are needed. Which, for SGR-A* are frequently being taken, so improving (or ruling out) this explanation should happen fairly quickly. But it's a very interesting, and fun, idea.

Submission + - Surado, formerly Slashdot Japan, is closing at the end of the month. (srad.jp) 1

Submitted by AmiMoJo
AmiMoJo writes: Slashdot Japan was launched on May 28, 2001. On 2025/03/31, it will finally close. Since starting the site separated from the main Slashdot one, and eventually rebranded as "Surado", which was it's Japanese nickname.

Last year the site stopped posting new stories, and was subsequently unable to find a buyer. In a final story announcing the end, many users expressed their sadness and gratitude for all the years of service.

Comment Re:Complete Bulls*** (Score 1) 191

by mr_mischief (#63086378) Attached to: Epson To End the Sale and Distribution of Laser Printer

Some of the most useful drivers in CUPS are "Generic PCL Laser Printer" and "Generic PostScriptPrinter". The Canon drivers for my ImageClass MF8580Cdw offer some extra features, but both of those drivers work with it and many other printers if you're just concerned with printing. It will also work over lpd, HP's hpjis or whatever, HTTP, or HTTPS. I used to have (and probably still do in a drawer) a standalone network print server to hook up to non-network-native printers. For that I could use PCL or PostScript generic drivers depending on the printer, too. Or I could actually FTP a text, PS, EPS, PCL, or IIRC PDF file directly to the print server.

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