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Phys.org / New radio-burst method helps locate universe's missing ordinary matter

Stars and galaxies make up much of the universe's ordinary, observable matter. But for decades, scientists have wrestled with a cosmic conflict: There should be much more.

Jul 21, 2026
Medical Xpress / Smarter sonograms: Researcher uses generative AI to advance medical imaging

The first photographs many parents have of their children are sonograms, used to check on the health of developing fetuses. These sonograms use noninvasive ultrasound technology, but the grainy, gray images they produce can ...

16 hours ago
Phys.org / From quantum error correction to emergent gravity: Probing holographic universes at QLab

One of the deepest ambitions in modern physics is understanding how the fabric of space and time could emerge from fundamental quantum degrees of freedom to establish a quantum theory of gravity.

Jul 21, 2026
Tech Xplore / How can rural communities benefit from South Africa's green energy transition? A solar farm in Limpopo offers clues

South Africa, which produces about 40% of Africa's carbon emissions, is moving away from coal-fired power toward renewable energy such as solar and wind.

19 hours ago
Phys.org / Astronomers are still trying to understand how a galaxy's spiral arms form

The Whirlpool galaxy (M51) is a classic grand spiral galaxy. It was the first object identified as a spiral, way back in 1845. At the time, it and other galaxies were considered spiral nebulae, since astronomers didn't know ...

Jul 22, 2026
Phys.org / Does dark energy really exist? Our work identifies cracks in the foundations of today's cosmological model

According to current understanding, the universe is expanding—and is doing so at an accelerating rate. This is believed to be caused by something called the cosmological constant, which was first proposed by Albert Einstein ...

Jul 21, 2026
Phys.org / Why do some people who trust in science also believe in scientific conspiracy theories?

In a world where trust in institutions is generally declining, trust in science remains relatively high. Yet belief in scientific conspiracy theories, such as hushed-up effects of vaccines or airplane "chemtrails," is also ...

Jul 20, 2026
Phys.org / Kindness emerges intuitively in young children before reflection catches up, study finds

While humans are inherently social beings, psychology studies suggest that their social skills are gradually fine-tuned over time and with experience. Understanding when different social skills emerge and how they typically ...

Jul 22, 2026
Phys.org / Why and how birdsong differs across the world—and the eight motifs that tie them together

Birdsong carries meaning across open space, helping birds attract mates, defend territory and communicate with rivals. While there has been much research into the use of birdsong across species, researchers have lacked a ...

Jul 24, 2026
Phys.org / Astronomers catch massive galaxy assembling piece by piece 1.2 billion years after Big Bang

Astronomers have discovered a remarkably tiny group of six young galaxies just 1.2 billion years after the Big Bang. This may be a rare glimpse of how some of the universe's largest galaxies formed. The paper outlining the ...

Jul 24, 2026
Phys.org / Review finds lack of evidence as to whether planting around our homes reduces the pollution we breathe

A new review led by the University of East London (UEL) has uncovered a major blind spot in air pollution research. Despite domestic gardens covering vast areas of Britain's towns and cities, researchers found no direct evidence ...

Jul 24, 2026
Phys.org / How fishing may be changing one fish species at the molecular level

The pearly razorfish (Xyrichtys novacula) is a small marine animal that lives in sandy coastal waters and feeds on creatures like shrimp. Known locally in Spain's Balearic Islands as raors, it is a popular dish in many homes ...

Jul 24, 2026