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Aliens might exist, but there are three reasons why they’re not visiting us

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.

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Can the cataclysmic explosions of dying stars help unlock grand mysteries of the universe?

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.

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‘Puffy’ super-Neptune emerges 383 light-years away with a density of just 0.4 g/cm³

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.

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‘I remember it like it was yesterday’: Orlando officers mark 10 years since Pulse

Officers who confronted the gunman and rescued victims say the events of June 12, 2016, continue to shape their lives and careers

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Engineering quantum Hall stripes in 2D materials inside electromagnetic cavities

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.

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SpaceX IPO set for liftoff in record market debut

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.

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Science fiction? Musk’s lofty SpaceX goals unrealistic, skeptics say

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.

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A look at the SpaceX IPO by the numbers

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.

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Cosmic dawn fuel discovery unlocks early galaxy growth secrets

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.

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New cavity control strategy improves performance of blue vertical-cavity surface-emitting lasers

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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Light echoes reveal possible dark matter buildup around supermassive black holes

We may not know what dark matter is, but we keep getting whiffs of it. “We are reaching a point where the observational evidence for dark matter is simply undeniable,” said Mayank Sharma, a Virginia Tech graduate student in physics.

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A new kind of entanglement helps quantum sensors tune out noise

In a quest to build the most accurate quantum sensors in the world, scientists are constantly improving their performance, making them more precise, more stable and more reliable. But eventually, physical constraints will prevent further improvements.

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BWC: Calif. deputies open fire after man runs up to cruiser with gun

After a brief pursuit, the exited and ran toward one of the Orange County deputy’s driver’s side doors

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Newly synthesized fullerene material remains metallic even under low temperatures

An international team whose research was coordinated by Osaka Metropolitan University (OMU) has reported the survival of metallic behavior in the strongly correlated molecular material ytterbium cesium fulleride (Yb₂CsC₆₀). The electrons in the newly synthesized material remained mobile and continued to conduct electricity even at the lowest temperatures studied, despite strong electron interactions that would normally be expected to drive the material into an insulating state.

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ESA officially adopts ARRAKIHS mission: EU leads the exploration of the low surface brightness universe

The European Space Agency (ESA) has officially adopted ARRAKIHS as a scientific mission, confirming the target launch date of 2030. Matthieu Schaller is part of the science team: “I look forward to learning more about the dark part of our cosmos.”

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