Science News Today | Latest Science News & Discoveries

Could quantum uncertainty in the universe’s size and expansion rate mimic dark energy?

Stone tools suggest Neanderthals may have reached northern Arabia around 55,000 years ago

A 6,500-year-old human tooth was turned into a carefully crafted pendant in Neolithic Serbia

This coronal mass ejection looked like it would miss Earth, but spacecraft found a hidden component

Large herbivores were not dying faster — they were evolving into new species more slowly

The human birth canal may have evolved more for pelvic floor stability than efficient walking

Maternal-age effects did not accumulate across generations, but they took opposite paths in two rotifer strains

Cmpd17b lowered blood pressure while easing kidney fibrosis in hypertensive mice

Adults with sleep problems and mild cognitive impairment scored higher on cognitive tests when they reported taking at least 5,000 IU of vitamin D daily

Urolithin A targets a single cysteine to improve heart relaxation in mice with HFpEF

Australopithecus and Paranthropus may belong inside a much larger Homo

Birds add fresh greenery to their nests, but scientists still cannot explain why it helps their young

The ancient escarpment that may have erased 8 kilometers of rock from the Grand Canyon

NASA images a new 60-foot crater created by a SpaceX rocket stage

Hidden low-mass stars could make some early galaxies four times more massive

The Sun’s 11-year cycle weakened in two distinct ways during ancient solar minima

Archaeopteryx may have needed two or three jumps to take flight

Inside a Luxor tomb, later burials were placed directly over earlier ones

The modern human male pelvis may be the evolutionary outlier, not the Neanderthal pelvis

Sooty mangabeys bend the middle of their feet nearly as much as chimpanzees bend their ankles while climbing

Two actively feeding black holes are growing inside a compact Green Pea galaxy

Giant crocodilians left bite marks on 1,800-kilogram mammals 12 million years ago

This Cretaceous beetle had antennae unlike any known beetle, living or fossil

Distant blazar shows unusual light patterns that may be caused by invisible gravitational lenses

Pacific reefs once supported 20 times more sharks than Caribbean reefs in Panama

Ancient Wyoming forests opened up as heat and drying stressed trees 56 million years ago

Gluon production drops sharply when ALICE probes regions one-quarter the size of a proton

Millicharged particles could slip through a Faraday cage and leave an electric signal behind

Europe’s hyaenodonts did not disappear when rival predators expanded—they survived for millions of years

Bronze Age Greeks wore rings made from iron that fell from the sky