Researchers have a better understanding of the asteroid Vesta and its internal structure, thanks to numerical simulations and data from the space mission Dawn. Their findings question contemporary models of rocky planet formation, including that of Earth.
A recent study shows that diffuse X-ray background is dominated by the local hot bubble of gas (1 million degrees), with, at most, 40 percent of emission originating within the solar system. The findings should put to rest the disagreement about the origin of the X-ray emission and confirm the existence of the local hot bubble.
Small-scale advances in fluid physics, materials engineering and nanoscience have brought scientists one step closer to mimicing the way a desert beetle collects and drinks water. Understanding how liquids interact with different materials can lead to more efficient, inexpensive processes and products, and might even lead to airplane wings impervious to ice and self-cleaning windows.
Repeated freezing and thawing might not be good for the average steak, but each fall it might help wood frogs prepare to survive Alaska’s winter cold. Frogs prevent the freeze-pop effect by packing their cells with glucose, a kind of sugar that reduces drying and stabilizes cells, a process scientists call cryoprotection.
Scientists are looking for ways to turn bamboo into a construction material more akin to wood composites, like plywood. The idea is that a stalk, or culm, can be sliced into smaller pieces, which can then be bonded together to form sturdy blocks—much like conventional wood composites.
A special class of tiny gold particles can easily slip through cell membranes, making them good candidates to deliver drugs directly to target cells. A new study reveals that these nanoparticles enter cells by taking advantage of a route normally used in vesicle-vesicle fusion, a crucial process that allows signal transmission between neurons.
Twisting a screwdriver, removing a bottle cap and peeling a banana are just a few simple tasks that are tricky to pull off single-handedly. Now, a new wrist-mounted robot can provide a helping hand — or rather, fingers.
On this edition of LabChat, Editor Michelle Taylor delves into the effect toxic heavy metals have on our environment, including land, water and food.
Physicists are working to bring the theory that parallel universes exist— called the multiverse hypothesis— firmly into the realm of testable science.
In this video, ACS examines four scientific facts about money. Did you know those dollar bills in your pocket have a hint of cocaine on them? Or that there are hidden inks and features to prevent counterfeiting? These are just a couple fascinating facts about money to make you scientifically richer.
Regeneration is one of the most tantalizing areas of biological research, raising many questions. Four professors are now undertaking the basic scientific research needed to begin unraveling the mysteries. Each of them approaches the problem from a different angle, focusing on different aspects of regeneration and using different vertebrate models.
In the movie “Terminator 2: Judgment Day,” the shape-shifting T-1000 robot morphs into a liquid state to squeeze through tight spaces or to repair itself when harmed. Now, a phase-changing material built from wax and foam, and capable of switching between hard and soft states, could allow even low-cost robots to perform the same feat.
The largest study of its kind has found that organic foods and crops have a suite of advantages over their conventional counterparts, including more antioxidants and fewer, less frequent pesticide residues. The study looked at an unprecedented 343 peer-reviewed publications comparing the nutritional quality and safety of organic and conventional plant-based foods, including fruits, vegetables and grains.
New research suggests that physical conditions at the air-sea interface— where the ocean and atmosphere meet— is a key component to improve forecast models. The study offers a new method to aid in-storm intensity prediction of hurricanes.
The full moon on Saturday will appear to be unusually big. In fact, it will be a "supermoon." The moon follows an elliptical path around Earth with one side— perigee— about 50,000 km closer than the other— apogee. Full moons that occur on the perigee side of the moon's orbit seem 14 percent bigger and 30 percent brighter than regular full moons.
A stunning video based on fossils of a 410-million-year-old arachnid– one of the first predators on land– recreates the animal walking. Scientists used the fossils– thin slices of rock showing the animal’s cross-section– to work out the range of motion in the limbs of this ancient, extinct early relative of spiders.