It’s the greatest cosmic murder mystery of the year: How did a black hole destroy a star—and what kind of black hole is the culprit? Normally, so-called “gamma ray bursts,” sudden flashes of extremely ...

The market seems to be content, for now at least, to keep betting big on AI. While the value of some companies integral to the AI boom like Nvidia, Oracle and Coreweave have seen their value fall ...

Abstract: For an LLC converter, it is difficult to realize the wide output range with conventional pulse frequency modulation control because of the limited operating frequency. This paper proposes a ...

An 1851 ink-and-watercolor gift drawing titled A Type of Mother Hannah’s Pocket Handkerchief by Polly Jane Reed, a Shaker in New Lebanon, New York. Andrews Collection, Hancock Shaker Village, ...

Courtney is a registered nurse with over 13 years of experience in the clinical setting, helping individuals navigate their way through their healthcare journeys. She has been in the frontlines ...

HONG KONG (SCMP): Ambiguous rules, lax supervision and uncoordinated policies involving at least four departments are among some deep-rooted problems contributing to the inferno that killed 160 ...

Everyone in tech agrees we’re in a bubble. They just can’t agree on what it looks like — or what happens when it pops. MIT Technology Review Explains: Let our writers untangle the complex, messy world ...

Michael Burry, the investor known for his “Big Short” investment, has issued a warning about the unpredictability of an AI bubble burst. He has also criticized Nvidia‘s role in contributing to the ...

A gamma-ray burst (GRB) — the most energetic type of explosion in the universe since the Big Bang — is detected once every day, on average. But what happened on July 2, 2025, was highly unusual: ...