An electrode designed like a pomegranate – with silicon nanoparticles clustered like seeds in a tough carbon rind – overcomes several remaining obstacles to using silicon for a new generation of lithium-ion batteries, say its inventors at Stanford University and the Department of Energy's SLAC National Accelerator Laboratory.
From warp drives to hyperspace, science fiction has continuously borrowed from, and sometimes anticipated, the state of the art in scientific progress. This has resulted in the perception that science and science fiction have a causal relationship, one finding direction from and fulfilling the science fantasy laid out before it.
One year ago, on Feb. 15, 2013, the world was witness to the dangers presented by near-Earth Objects (NEOs) when a relatively small asteroid entered Earth's atmosphere, exploding over Chelyabinsk, Russia, and releasing more energy than a large atomic bomb.
Sunspots come in many sizes and shapes and are locations of strong magnetic fields that extend from below the solar surface through the solar atmosphere into the interplanetary medium. They are also the locations of eruptive phenomena, such as flares, that release a tremendous amount of energy and can disrupt technology on Earth.
Growing industrialization threatens the deep ocean's ecosystems, considered key to the health of the planet.
Grasping the concept of climate change and its impact on the environment can be difficult. Establishing common ground and using models, however, can break down barriers and present the concept in an easily understood manner.
The price of electricity has dropped in states that have developed extensive wind power over the past five years. It’s just a slight drop, but here’s the kicker: the other states have seen a hefty rise.
Researchers have determined the now-infamous Martian rock resembling a jelly doughnut, dubbed Pinnacle Island, is a piece of a larger rock broken and moved by the wheel of NASA's Mars Exploration Rover Opportunity in early January.
On the plains of Namibia, millions of tiny termites are building a mound of soil—an 8-foot-tall "lung" for their underground nest. During a year of construction, many termites will live and die, wind and rain will erode the structure, and yet the colony's life-sustaining project will continue.
Graphene has proven itself as a wonder material with a vast range of unique properties. Among the least-known marvels of graphene is its strange love affair with water.
These are, in fact, the droids that NASA and its research partners are looking for. Inspired by a floating droid battling Luke Skywalker in the film Star Wars, the free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) have been flying aboard the International Space Station since Expedition 8 in 2003.
Earlier this month, NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) observatory successfully downlinked images of the moon and stars taken by onboard camera systems, known as star trackers. This is the first time the LADEE team commanded the spacecraft to send these pictures back to Earth.
They talk about the “valley of death” that technology startups face. Maybe for ocean energy it ought to be called the Mariana Trench of death. It’s deep, with precious little funding floating around to help a new wave or advanced tidal concept make it to the commercial prototype stage in the long development process.
The blades for five giant wind turbines from the French company Alstom will be delivered to Deepwater Wind in Europe in April under a contract announced this week. So when will Deepwater be able to put them to use in what could be the first offshore wind farm in the U.S.? Not nearly as soon as hoped.
A team of European astronomers has found a previously unknown comet, detected as a tiny blob of light orbiting our Sun deep in the Solar System. Europe’s Teide Observatory Tenerife Asteroid Survey team has been credited with discovering comet P/2014 C1, named ‘TOTAS’ in recognition of the teamwork involved in the find.
Understanding the region of interstellar space through which the solar system travels is no easy task. Interstellar space begins beyond the heliosphere, the bubble of charged particles surrounding the sun that reaches far beyond the outer planets. Voyager 1 has crossed into this space, but it’s difficult to gain a complete global picture from measurements in only one direction.
NASA's Mars Odyssey spacecraft has tweaked its orbit to help scientists make the first systematic observations of how morning fogs, clouds and surface frost develop in different seasons on the Red Planet.
In addition to their trouble with reading, people with dyslexia also have greater difficulty than typical readers do when it comes to managing competing sensory cues, according to a study reported February 13 in Current Biology, a Cell Press publication. The findings suggest that action video games might improve literacy skills in those with dyslexia, which represent five to ten percent of the population.
The spread of obesity and type-2 diabetes could become epidemic in low-income countries, as more individuals are able to own higher priced items such as TVs, computers and cars.
The rapid conversion of natural lands to cement-dominated urban centers is causing great losses in biodiversity. Yet, according to a new study involving 147 cities worldwide, surprisingly high numbers of plant and animal species persist and even flourish in urban environments — to the tune of hundreds of bird species and thousands of plant species in a single city.