This is a 3D map of a corner of the universe created by British astronomers using the DESI, or the The Dark Energy Spectroscopic Instrument super telescope.
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First Detection of the BAO Signal from Early DESI DataWe present the first detection of the baryon acoustic oscillations (BAO) signal obtained using unblinded data collected during the initial two months of operations of the Stage-IV ground-based Dark Energy Spectroscopic Instrument (DESI). From a selected sample of 261,291 Luminous Red Galaxies spanning the redshift interval 0.4 | z | 1.1 and covering 1651 square degrees with a 57.9% completeness level, we report a ~5 sigma level BAO detection and the measurement of the BAO location at a precision of 1.7%. Using a Bright Galaxy Sample of 109,523 galaxies in the redshift range 0.1 | z | 0.5, over 3677 square degrees with a 50.0% completeness, we also detect the BAO feature at ~3 sigma significance with a 2.6% precision. These first BAO measurements represent an important milestone, acting as a quality control on the optimal performance of the complex robotically-actuated, fiber-fed DESI spectrograph, as well as an early validation of the DESI spectroscopic pipeline and data management system. Based on these first promising results, we forecast that DESI is on target to achieve a high-significance BAO detection at sub-percent precision with the completed 5-year survey data, meeting the top-level science requirements on BAO measurements. This exquisite level of precision will set new standards in cosmology and confirm DESI as the most competitive BAO experiment for the remainder of this decade.
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Tons of Future British EVs Are Coming from 2025–2030Aston Martin, Bentley, Jaguar Land Rover, and more will soon undergo a massive shift toward electric vehicles, and we have details on these upcoming models.
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This $5 Million Roger Smith Pocket Watch Just Became the Most Expensive British Timepiece Ever SoldPhillips and Christie's both had great weeks—but Roger Smith is this auction season's real winner.
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British girl shot dead in family garden in western FranceAn 11-year-old British girl has been shot dead in the garden of her home in Brittany, western France, following a years-long dispute between neighbours over land, the local prosecutor and a town hall official said.
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Video of prescribed burn in British Columbia misrepresented onlineSocial media users sharing a video of a helicopter dropping flames on a forest repeat claims that Canada's wildfire emergency is the result of blazes set on purpose. This is false; officials confirmed the video shows a heli-torch executing a controlled burn, which is an established suppression tactic where a fire's fuel is set alight as a containment measure before it reaches populated areas.
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British girl, 11, killed during garden dispute in FranceThe family were in their garden when their 71-year-old Dutch neighbor appeared with a firearm and started firing several times in their direction before shutting himself in his house with his wife,…
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