When high or low tide occurs, the water does not necessarily rise and fall uniformly along the entire coastline. In fact, the height of the tide in a bay can vary by up to one meter (3 feet) from one location to another just a few kilometers away.
A new study suggests that El Ninos—the natural climatic chaos agent that pops up periodically and spikes global temperatures—are getting stronger because of human-caused climate change.
The intestines rely on different strategies to rebuild themselves in response to diet changes versus infections, according to a new Cornell study—a finding that can shed light on how gut health adapts to harsh conditions, flourishing ecosystems of microbes and variable diets.
NASA's newest crown jewel blasted off Sunday to hunt for planets around other stars, explore secret dark energy and survey the cosmos like never before.
Researchers from Tokyo Metropolitan University have created a new system to test magnetohydrodynamic aerobraking for spacecraft reentering the atmosphere. Their platform generates intense magnetic fields with a powerful electromagnet as a miniature vessel is hit with a shock wave traveling at over seven kilometers per second (4.3 miles per second). The magnets reached far higher fields than previous work with permanent magnets and are a crucial stepping stone toward tests with real vessels in the atmosphere.
Tropical Storm Karina strengthened into a hurricane in the Pacific Ocean on Sunday and could become a major storm this week, forecasters said. The cyclone's center was at far out sea and was not threatening land.
On the surface, posting online reviews looks like a win-win activity. It helps both businesses we like and people who might frequent them. But although posting reviews can benefit others, it can also put us all at risk, according to new research from the McCombs School of Business at The University of Texas at Austin. It can inadvertently expose our personal connections and make us and our online friends more vulnerable to cyberattacks.
Lucerne seed wasp (LSW) is a serious pest in alfalfa crops, causing damage that is difficult to see in the field. Its larvae feed inside developing seeds, meaning losses may not become apparent until harvest, cleaning or seed delivery, when it is too late to intervene. Each wasp represents a lost seed, with infested seeds removed by seed-cleaning facilities along with other impurities.
Slithering across the ceiling of an Australian rock shelter is a giant snake with a crocodile-like head, razor-sharp teeth and a long tongue. It's more than 6 meters (20 feet) long, making it one of the largest Rainbow Serpent paintings ever recorded in Arnhem Land and adding to the curious repertoire of similarly giant paintings across the region.
Quantum technologies promise secure communication networks, powerful forms of computing and new sensing tools. One of the major challenges, however, is that different quantum systems often operate at different wavelengths of light. Quantum memories, trapped ions and other quantum devices may work best in the ultraviolet or visible range, while long-distance communication over optical fibers works most efficiently at telecommunications wavelengths.
