Stone circles show Neandertals’ social, technical skills

In at least one part of Stone Age Europe, Neandertals were lords of the rings. Humankind’s close evolutionary cousins built large, circular structures out of stalagmites in a French cave around 176,500 years ago, researchers say. Neandertal groups explored the cave’s dark recesses, where they assembled stalagmite pieces into complex configurations, archaeologist Jacques Jaubert of […]

New technique produces real randomness

Ask a computer to pick a random number and you’ll probably get a response that isn’t completely unpredictable. Because they are deterministic automatons, computers struggle to generate numbers that are truly random. But a new advance on a method known as a randomness extractor makes it easier for machines to roll the dice, generating truly […]

Quantum weirdness survives space travel

In a feat that demonstrates the feasibility of using satellites to transmit uncrackable quantum messages, scientists have measured the quantum properties of photons sent to space and back again. Physicists beamed the blips of light up to a satellite that reflected them back to Earth. Upon the photons’ return, the team, led by Paolo Villoresi […]

Four newest elements on periodic table get names

Four new elements now have names. In December, the International Union of Pure and Applied Chemistry officially recognized the discovery of elements 113, 115, 117 and 118, filling out the seventh row of the periodic table (SN: 2/6/16, p. 7). As is traditional in chemistry, the naming rights went to the discoverers: Scientists at RIKEN […]

City living shortens great tits’ telomeres

Urban living could pose risks to great tits, at least in terms of their DNA. City life comes with a host of factors that can, for better or worse, affect a bird over its life span. To see how urbanization might influence early development in great tits (Parus major), biologists at Lund University in Sweden […]

Benign-turned-deadly bacterium baffles scientists

BOSTON — A deadly infection that has now spread to three states is puzzling disease investigators. The illness is caused by Elizabethkingia anophelis, a bacterium commonly found in soil and water and that, until now, has rarely caused problems. Public health authorities in Wisconsin first reported the outbreak to the U.S. Centers for Disease Control […]

Hints of new particle rumored to fade, but data analysis continues

Particle physics fans are just going to have to wait. Rumors swirling on the internet are casting doubt on hints of a new particle reported by scientists at the particle physics laboratory CERN in Geneva. But researchers say it’s still too soon to know whether the particle exists or not. “Currently the data are still […]

World will struggle to keep warming to 2 degrees by 2100

The world’s current game plan to combat climate change will miss the mark. Crunching the numbers on 187 nations’ climate action proposals announced in advance of the December 2015 Paris Agreement, researchers estimate that the efforts will limit global warming to 2.6 to 3.1 degrees Celsius above preindustrial levels. That’s far above the goal agreed […]

New clues in search for Planet Nine

More clues about where to search for a possible ninth planet lurking in the fringes of our solar system are emerging from the Kuiper belt, the icy debris field beyond Neptune. And new calculations suggest that the putative planet might be brighter — and a bit easier to find — than once thought. Evidence for […]

When bird populations shrink, females fly away

In some populations of birds, males may wonder why they can’t find a mate. It’s not that they’re unattractive or can’t sing the right song. It’s that females are in short supply. This phenomenon is a common one in birds, particularly in threatened species and among populations that are small or fragmented. And scientists weren’t […]