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Looking somewhat like a swarm of bees returning to their hive, this NASA Hubble Space Telescope image features the galaxy cluster MACS0329-0211. Galaxy clusters like MACS0329-0211 are important signposts in the story of how the structure of the universe evolved, and are the ultimate telescopic lenses, placing gravitationally lensed galaxies from the earliest stages of the universe into our view.
Elon Musk’s SpaceX began its first day as a public company on Wall Street on Friday after the biggest initial public offering in history, with the polarizing entrepreneur promising he will take humanity to Mars.
Birds in flocks, bacteria and cells: In many collective systems, individual elements respond to only part of their surroundings, seemingly defying Newton’s third law of motion—action equals reaction. These exceptions are known as nonreciprocal interactions. A Dresden physics team working with Roderich Moessner, a founding member of the Würzburg–Dresden Cluster of Excellence ctd.qmat, has now developed a theory that makes it possible to describe these interactions efficiently and simulate them far more precisely.
The agreement includes changes to Loveland police training and dog encounter procedures following the incident
The report recommends mandatory staffing plans, compliance reviews and corrective action for commands that repeatedly exceed overtime spending targets
The United States government’s recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg movie, “Disclosure Day,” about extraterrestrial life, has fueled the idea that aliens are visiting Earth.
Once charted as a ‘guest star’ in ancient China, dreaded as a harbinger of ill omens in medieval Europe, and preserved in the narratives and artworks of Indigenous cultures, these cosmic spectacles are now known as core-collapse supernovae.
Using the Subaru Telescope, astronomers have conducted follow-up observations of a recently discovered exoplanet known as TOI-1883 b. Results of the new observations, published June 5 on the arXiv preprint server, indicate that TOI-1883 b is a low-density super-Neptune.
Officers who confronted the gunman and rescued victims say the events of June 12, 2016, continue to shape their lives and careers
Quantum materials, materials with properties that are governed by the laws of quantum mechanics, have proved to be highly promising for the development of ultra-efficient electronic devices, quantum processors, highly precise sensors and various other technologies. Reliably controlling these materials’ quantum phases would be highly advantageous, as it would enable engineers to tailor and optimize their properties for specific applications.
Elon Musk’s SpaceX was set to begin trading on the Nasdaq exchange Friday, with the biggest initial public offering in history expected to make the polarizing entrepreneur the world’s first trillionaire.
Elon Musk’s SpaceX has made awe-inspiring achievements since its founding more than two decades ago and has big ideas—colonies on Mars, orbital AI data centers, rapidly reusable rockets—for the future.
Elon Musk is all about big numbers—millions, billions, even trillions—and there are plenty of them associated with SpaceX and Musk’s plans to take the rocket maker public.
Astronomers have discovered a huge reservoir of cold molecular gas, the direct fuel for star formation, in REBELS-25, a massive, star-forming galaxy. The team, led from Leiden University, focused on REBELS-25, seen when the universe was only about 700 million years old, around 5% of its current age. The research is published in the journal Monthly Notices of the Royal Astronomical Society.
GaN-based vertical-cavity surface-emitting lasers (VCSELs) are promising for displays, sensing and optical communication, but improving efficiency remains challenging. Researchers have now shown that “cavity tuning,” which controls resonance wavelength, strongly affects laser performance. By analyzing variations across a VCSEL wafer, the team identified optimal mirror loss conditions and extracted device parameters. Their approach achieved 26.4% wall plug efficiency, offering guidance for next-generation high-efficiency visible-light semiconductor lasers.
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