Scientists using mission data from NASA's Cassini spacecraft have identified 101 distinct geysers erupting on Saturn's icy moon Enceladus. Their analysis suggests it is possible for liquid water to reach from the moon's underground sea all the way to its surface.
The Cheshire Cat featured in Lewis Caroll’s novel Alice in Wonderland is a remarkable creature:...
Panagiotis Grammatikopoulos, in the Okinawa Institute of Science and Technology Graduate...
Physicists have identified the “quantum glue” that underlies a promising type of...
The magnets cluttering the face of your refrigerator may one day be used as cooling agents, according to a new theory. The theory describes the motion of magnons — quasi-particles in magnets that are collective rotations of magnetic moments, or “spins.” In addition to the magnetic moments, magnons also conduct heat; researchers found that when exposed to a magnetic field gradient, magnons may be driven to move from one end of a magnet to...
A new method of building materials using light could one day enable technologies that are often considered the realm of science fiction, such as invisibility cloaks and cloaking devices. Although cloaked starships won't be a reality for quite some time, the technique researchers have developed for constructing materials with building blocks a few billionths of a meter across can be used to control the way light flies through them.
Fifteen years ago, NASA's Chandra X-ray Observatory was launched into space aboard the Space Shuttle Columbia. Since its deployment, Chandra has helped revolutionize our understanding of the universe through its unrivaled X-ray vision. Chandra, one of NASA's current "Great Observatories," along with the Hubble Space Telescope and Spitzer Space Telescope, is specially designed to detect X-ray emission from hot and energetic regions.
Thanks to NASA's Kepler and Spitzer Space Telescopes, scientists have made the most precise measurement ever of the radius of a planet outside our solar system. The size of the exoplanet, dubbed Kepler-93b, is now known to an uncertainty of just 74 miles (119 kilometers) on either side of the planetary body.
A new home-grown instrument based on bundles of optical fibers is giving Australian astronomers the first 'Google street view' of the cosmos — incredibly detailed views of huge numbers of galaxies. Developed by researchers at the University of Sydney and the Australian Astronomical Observatory, the optical-fiber bundles can sample the light from up to 60 parts of a galaxy, for a dozen galaxies at a time.
String bends, tapping, vibrato and whammy bars are all techniques that add to the distinctiveness of a lead guitarist's sound, whether it's Clapton, Hendrix, or BB King. Now, guitarist and physicist Dr. David Robert Grimes has described the physics underlying these techniques.
Maybe you’ve sat on the lawn, even hung out on the flightline. Now, for the first time since 1997, NASA Ames Research Center is opening their house. An announcement posted on NASA.gov states: “For our 75th anniversary, we're inviting all of the Bay Area and Silicon Valley to come inside the gates and get to know NASA's center in Silicon Valley. Take a two-mile walking tour through the center and visit with Ames engineers and scientists..."
A team of Dartmouth scientists and their colleagues have devised a breakthrough laser that uses a single artificial atom to generate and emit particles of light — and may play a crucial role in the development of quantum computers, which are predicted to eventually outperform even today’s most powerful supercomputers.
The globe is on a hot streak, setting a heat record in June. That's after the world broke a record in May. The National Oceanic and Atmospheric Administration announced July 21, 2014, that last month's average global temperature was 61.2 degrees, which is 1.3 degrees higher than the 20th century average. It beat 2010's old record by one-twentieth of a degree.
A new material structure developed at MIT generates steam by soaking up the sun. The structure — a layer of graphite flakes and an underlying carbon foam — is a porous, insulating material structure that floats on water. When sunlight hits the structure’s surface, it creates a hotspot in the graphite, drawing water up through the material’s pores, where it evaporates as steam. The brighter the light, the more steam is generated.
Scientists from Queen Mary University of London have found a successful way of identifying bird sounds from large audio collections, which could be useful for expert and amateur bird-watchers alike. The analysis used recordings of individual birds and of dawn choruses to identify characteristics of bird sounds. It took advantage of large datasets of sound recordings provided by the British Library Sound Archive, and online sources.
Scientists for the first time have experimentally re-created the conditions that exist deep inside giant planets, such as Jupiter, Uranus and many of the planets recently discovered outside our solar system. Researchers can now re-create and accurately measure material properties that control how these planets evolve over time. This study focused on carbon, which has an important role in many types of planets ...
Physicists have created a unique combination of computer models, based on the theory of quantum mechanics, and applied them to a previously well-characterized protein found in muscle to develop a new picture of how biomolecules transport and store oxygen (O2). In doing so, the team has shown how the process of respiration, which is fundamental in humans and other vertebrates, exploits quantum mechanical effects working on tiny scales.
One of the great, unanswered questions for space weather scientists is just what creates two gigantic donuts of radiation surrounding Earth, called the Van Allen radiation belts. Recent data from the Van Allen Probes — two nearly identical spacecraft that launched in 2012 — address this question.
Over the years, computer chips have gotten smaller, thanks to advances in materials science and manufacturing technologies. This march of progress, the doubling of transistors on a microprocessor roughly every two years, is called Moore’s Law. But there’s one component of the chip-making process in need of an overhaul if Moore’s law is to continue: the chemical mixture called photoresist.
Dassault Systèmes announced the acquisition of SIMPACK, a multi-body simulation technologies and solutions company. With the acquisition of SIMPACK, based near Munich, Germany, Dassault Systèmes is expanding its SIMULIA realistic multiphysics simulation technology portfolio to include multi-body mechatronic systems, from virtual concept validation to the real-time experience.
The Cray XC30 system will be used by a nation-wide consortium of scientists called the Indian Lattice Gauge Theory Initiative (ILGTI). The group will research the properties of a phase of matter called the quark-gluon plasma, which existed when the universe was approximately a microsecond old. ILGTI also carries out research on exotic and heavy-flavor hadrons, which will be produced in hadron collider experiments.
Scientists have demonstrated the ability to track real quantum errors as they occur, a major step in the development of reliable quantum computers. Quantum computers could significantly improve the computational power of modern computers, but a major problem stands in the way: information loss, or quantum errors. To combat errors, physicists must be able to detect that an error has occurred and then correct it in real time.
As anybody who has started a campfire by rubbing sticks knows, friction generates heat. Now, computer modeling by NASA scientists shows that friction could be the key to survival for some distant Earth-sized planets traveling in dangerous orbits. The findings are consistent with observations that Earth-sized planets appear to be very common in other star systems.
SHOREHAM, NY (AP) — The billionaire owner of Tesla Motors is giving $1 million to a New York museum dedicated to preserving the legacy of the inventor who inspired its name. The Tesla Science Center announced Elon Musk's donation on what would have been Nikola Tesla's 158th birthday.
Quasiparticles can be used to explain physical phenomena in solid bodies even though they are not actual physical particles. Physicists in Innsbruck have now realized quasiparticles in a quantum system and observed quantum mechanical entanglement propagation in a many-body system.
A new discovery will make it possible to create pixels just a few hundred nanometers across that could pave the way for extremely high-resolution and low-energy thin, flexible displays for applications such as 'smart' glasses, synthetic retinas and foldable screens.
In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky. Now, a team of astronomers has used extensive new observations to create the first high-resolution 3-D model of the expanding cloud produced by this outburst.
In quantum mechanics, interactions between particles can give rise to entanglement, which is a strange type of connection that could never be described by a non-quantum, classical theory. These connections, called quantum correlations, are present in entangled systems even if the objects are not physically linked. Entanglement is at the heart of what distinguishes purely quantum systems from classical ones — why they are potentially useful.
The storage capacity of hard drives is increasing explosively, but the speed with which all that data can be written has reached its limits. Researchers presented a promising new technology which potentially allows data to be stored 1,000 times as fast in Nature Communications. The technology, in which ultra-short laser pulses generate a ‘spin current,’ also opens the way to future optical computer chips.
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