Theorists perplexed by hints of unexpected new particle

Physicists may soon know if a potential new subatomic particle is something beyond their wildest dreams — or if it exists at all. Hints of the new particle emerged last December at the Large Hadron Collider. Theorists have churned out hundreds of papers attempting to explain the existence of the particle —assuming it’s not a […]

Some Crohn’s genes make cells deaf to messages from good gut bacteria

Good gut bacteria might not help people with Crohn’s disease. Protective microbial messages go unread in mice and in human immune cells with certain defective genes, researchers report online May 5 in Science. The findings are the first to tie together the roles of genes and beneficial microbes in the inflammatory bowel disease, says biologist […]

Mercury’s stunning landscape mapped

Mercury has never looked better. Volcanic plains, craters, mountains and valleys are showcased in the first complete topographic map of the innermost planet, released May 6. Stitched together from over 100,000 images taken by NASA’s now-defunct MESSENGER spacecraft, the global catalog of landscapes provide data that researchers can use to better understand the history and […]

Scientists wrestle with possibility of second Zika-spreading mosquito

Sure, mosquitoes spread Zika virus. Scientists have already identified the yellow fever mosquito (Aedes aegypti) as a major spreader in the Americas of Zika and its risk of birth defects and possible paralysis. But Ae. aegypti may not be the only culprit. Recent evidence raises concerns that a relative, the Asian tiger mosquito (Ae. albopictus), […]

The Arctic Ocean is about to get spicier

Ocean spicinessOH-shuhn SPĪ-sē-nes n.Relative temperature and salinity variations within seawater of the same density. Warmer, saltier ocean water is considered spicy while cooler, fresher water is minty. Climate change will spice up the Arctic Ocean, researchers report in the April Journal of Physical Oceanography. Seawater that is both salty and cold is the most dense, […]

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 […]