Mercredi 23 Septembre 2026
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Infancy of Universe Seen in Brightest Quasar Yet

By Mark Brown, Wired UK

Meet ULAS J1120+0641, the most distant quasar ever found. A team of European astronomers have used a number of telescopes, data from The European UKIRT Infrared Deep Sky Survey (UKIDSS) and five years of searching to find it.

A quasar is a very bright, very distant galaxy that is juiced up by a supermassive black hole at its centre. The black hole in the middle of ULAS J11 has a mass two billion times that of our Sun, and the overall galaxy is the brightest object in the early Universe.

We see now it as it was just 770 million years after the Big...

The Tech Inside Apple's $50 Thunderbolt Cable

By Chris Foresman, Ars Technica

The first Thunderbolt compatible peripherals — Promise’s Pegasus RAIDs — started shipping on Tuesday. Using the RAIDs with a Thunderbolt equipped Mac, though, requires a rather expensive $50 cable that is only available from Apple. We dug into the design of the cable to find out why Apple felt justified in charging $50 for some plastic-wrapped copper wire, and why Thunderbolt may have a hard time gaining traction outside of the higher-end storage and video device market — a fate similar to Apple’s FireWire.

The Tech Inside Apple's $50 Thunderbolt CablePromise’s RAIDs do not come supplied with a Thunderbolt c...

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