Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Even with frigid temperatures, the Chabad Jewish Center of Monroeville celebrated its 10th annual Light Up the Night on Dec. 15 in Community Park West. The evening marked the second night of Hanukkah, ...

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: ...

The professor will no longer be able to teach a class on diversity after she showed students a diagram that included the “Make America Great Again” slogan as an example of white supremacy. By ...

NEW YORK (AP) — Scientists have spotted the brightest flare yet from a supermassive black hole that shines with the light of 10 trillion suns. These bursts of light and energy can come from things ...

A supermassive black hole violently gobbled up an enormous star, producing a cosmic outburst with the light of 10 trillion suns, according to a new study. The black hole flare, as the phenomenon is ...

The most massive stars in the universe are destined to explode as brilliant supernova before collapsing into black holes. Yet one huge star appears to have never fulfilled its destiny; in a twist of ...

Emily H. Wilson is wild for this sci-fi novel: I’ve not heard our sci-fi columnist recommend a book so wholeheartedly in all the time she’s written for us. It follows Mawukana na-Vdnaze, a deep-space ...

PITTSBURGH — A group of Pittsburgh Public Schools elementary students is learning some critical lessons through music. Faison Elementary School students learned exactly what to do while riding on a ...

Scientists have developed an ultra-thin, paper-like LED that emits a warm, sunlike glow, promising to revolutionize how we light up our homes, devices, and workplaces. By engineering a balance of red, ...

COMMENTARY: Catholics don’t have to agree with all of Charlie Kirk’s political or theological ideas to appreciate his obvious virtues and good moral habits that our society greatly and urgently needs.