Research deciphering the hidden magnetic messages encoded in a rare group of meteorites has helped secure nearly half a billion dollars of NASA funding for a journey to their parent asteroid -- the only known place in the solar system where scientists can examine directly what is probably a metallic core.
Scientists used human pluripotent stem cells to generate human embryonic colons in a laboratory that function much like natural human tissues when transplanted into mice, according to new research. The study is believed to be the first time human colon organoids have been successfully tissue engineered in this manner, according to researchers who led the project.
In a proof-of-concept study, engineers have designed a flexible thermoelectric energy harvester that has the potential to rival the effectiveness of existing power wearable electronic devices using body heat as the only source of energy.
Biomedical engineers have built simple machines out of DNA, consisting of arrays whose units switch reversibly between two different shapes. The arrays' inventors say they could be harnessed to make nanotech sensors or amplifiers. Potentially, they could be combined to form logic gates, the parts of a molecular computer.
At least 1.4 million seagulls feed at landfills in North America. Aside from the nuisance they pose, a study finds their nutrient-rich feces may threaten the health of nearby waters. The study estimates North American gulls deposit 240 tons of nitrogen and 39 tons of phosphorus into nearby lakes and reservoirs each year, fertilizing algae and weeds and costing local governments about $100 million in nutrient offset costs.
We can't help but be tempted by new things. We see it in a child's eyes when she opens a new toy, and feel it every time a new version of the iPhone is released. It turns out our preference for shiny, new things is pretty universal throughout the animal kingdom. Yes, even piglets prefer new toys.
With closer inspection, researchers have recognized that what appears to be a randomly dispersed herd peacefully eating grass is in fact a complex system of individuals in a group facing differing tensions. A team of mathematicians and a biologist has now built a mathematical model that incorporates a cost function to behavior in such a herd to understand the dynamics of such systems.
NASA's Kepler space telescope team has released a mission catalog of planet candidates that introduces 219 new planet candidates, 10 of which are near-Earth size and orbiting in their star's habitable zone, which is the range of distance from a star where liquid water could pool on the surface of a rocky planet.
It is likely to be one of the oldest prosthetic devices in human history: Together with other experts, Egyptologists have reexamined an artificial wooden big toe. The find is almost 3000 years old and was discovered in a female burial from the necropolis of Sheikh ´Abd el-Qurna close to Luxor. This area is currently being studied using state-of-the-art methods.
One of the well-known challenges of marriage is keeping the passion alive after years of partnership, as passions tend to cool even in very happy relationships. Psychological scientists have now developed an unconventional intervention for helping a marriage maintain its spark: pictures of puppies and bunnies.
Scientists have improved a state-of-the-art gene-editing technology to advance the system's ability to target, cut and paste genes within human and animal cells -- and broadening the ways the CRISPR-Cpf1 editing system may be used to study and fight human diseases.
Researchers have given the first demonstration of 3-D imaging of objects through walls using ordinary wireless signal. The technique, which involves two drones working in tandem, could have a variety of applications, such as emergency search-and-rescue, archaeological discovery and structural monitoring.
Scientists have demonstrated how floating particles will assemble and synchronize in response to acoustic waves. Their simple experiment provides a new framework for studying how seemingly lifelike behaviors emerge in response to external forces. The work could help address fundamental questions about energy dissipation and non-equilibrium thermodynamics.