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Phys.org / Gravity follows Newton and Einstein's rules, even at cosmic scales

Gravity, as most people understand it, is the familiar force that pulls a falling apple toward Earth. But for astronomers and theoretical physicists, it is also a vexing invisible architect that guides the shape and evolution ...

Apr 15, 2026
Dialog / Not so dark with Alena Tensor: Math framework could explain dark matter without invisible particles

Alena Tensor is a relatively new mathematical approach that allows for arbitrary curving and straightening of analyzed spacetimes. As it turns out, generalizing this model to all known fields and fully describing matter, ...

Apr 14, 2026
Phys.org / What do sushi, climbing and smoking have in common? How we talk about risk

Next week, Sara Perlstein will defend her Ph.D. on risk talk: the everyday conversations we have about risks with people close to us. From eating sushi to climbing or smoking, these informal talks shape how we deal with danger ...

18 hours ago
Phys.org / This nasal spray rewinds the aging brain, restoring memory and reversing inflammation in preclinical models

Picture this: your brain is a high-performance engine. Over decades, it doesn't just wear down, it also starts to run hot. Tiny "fires" of inflammation smolder deep within the brain's memory center, creating a persistent ...

Apr 14, 2026
Phys.org / Torsion balances set strongest direct limits yet on ultralight dark matter

Dark matter is believed to make up a large fraction of the matter in the universe, yet its true nature remains unknown. Most past experiments have focused on heavier dark matter candidates, while much lighter dark matter, ...

Apr 14, 2026
Phys.org / Self-interacting dark matter may solve three cosmic puzzles

A study led by UC Riverside physicist Hai-Bo Yu suggests that a new type of dark matter could explain three astrophysical puzzles across vastly different environments. Published in Physical Review Letters, the study proposes ...

Apr 13, 2026
Phys.org / Could dark matter be made of black holes from a different universe?

New research suggests that relic black holes from before the big bang may still shape galaxies today. These black holes could explain dark matter, one of the biggest unsolved questions in cosmology.

Apr 14, 2026
Medical Xpress / Loneliness highest among older Australians without partners or children

As Australia's population ages and loneliness becomes a growing public health concern, new research from Monash University has found that older Australians without close family ties face significantly higher rates of loneliness. ...

18 hours ago
Phys.org / Scientists capture superconductivity's 'dancing pairs' for first time, revealing missing pieces in a decades-old theory

For the first time, scientists have directly imaged the quantum process underlying superconductivity, a phenomenon in which paired electrons cause electric current to flow without resistance at sufficiently low temperatures. ...

Apr 15, 2026
Phys.org / As Artemis II is celebrated, the world faces hard questions about US leadership in space

The successful Artemis II trip around the moon was a historic achievement—the first crewed lunar fly-by in more than 50 years, and the greatest distance yet traveled by humans from our "pale blue dot."

Apr 13, 2026
Phys.org / Unearthed mega-structure hints at communal rule in Romania 6,000 years ago

Archaeologists working at the ancient settlement of Stăuceni-"Holm" in northeastern Romania have uncovered a mega-structure measuring 350 square meters dating back about 6,000 years. This is one of the few examples of a massive ...

Apr 15, 2026
Phys.org / Ancient Maya droughts may have been fueled by Earth's own climate swings

Dramatic droughts linked to the decline of the Classic Maya civilization approximately 800 to 1000 CE may not have required any external trigger, according to a new climate modeling study. Instead, they could have emerged ...

Apr 15, 2026