With blue hues suggestive of marine paradises and a texture evoking the tranquil flow of sea waves, this image might make us daydream of sandy beaches and exotic holiday destinations. Instead, the subject of the scene is intense and powerful, because it depicts the formation of stars in the turbulent billows of gas and dust of the Orion Molecular Cloud.
An international team of scientists have put forward a blueprint for a purely space-based system...
On a telescope at the summit of Mauna Kea in Hawaii, it’s not easy to put in a full night of...
NASA's Solar Dynamics Observatory, which watches the sun constantly, captured these images of a...
On April 25, 1990, astronauts aboard the Space Shuttle Discovery deployed the Hubble Space Telescope into Earth orbit and launched a new era of astronomical discovery. In its quarter-century in orbit, the world’s first space telescope has transformed our understanding of our solar system and beyond. Now, 25 years later, organizations around the world are joining in a celebration of this remarkable observatory.
Researchers have invented a new technology that can increase the bandwidth of WiFi systems by 10 times, using LED lights to transmit information. The technology could be integrated with existing WiFi systems to reduce bandwidth problems in crowded locations, such as airport terminals or coffee shops, and in homes where several people have multiple WiFi devices.
Astronomers may have found "the largest individual structure ever identified by humanity." In 2004, astronomers examining a map of radiation left over from the Big Bang discovered the Cold Spot, a larger-than-expected unusually cold area of the sky. The physics surrounding the Big Bang theory predicts warmer and cooler spots of various sizes in the infant universe, but a spot this large and this cold was unexpected.
Physicists have developed techniques that enable them to simulate high-speed impacts in artificial soil and sand in the lab, and then watch what happens underground close-up, in super slow motion. They report that materials like soil and sand actually get stronger when they are struck harder.
The core circuits of quantum teleportation, which generate and detect quantum entanglement, have been successfully integrated into a photonic chip by an international team of scientists from the universities of Bristol, Tokyo, Southampton and NTT Device Technology Laboratories. These results pave the way to developing ultra-high-speed quantum computers and strengthening the security of communication.
A scene of jagged fiery peaks, turbulent magma-like clouds and fiercely hot bursts of bright light — although this may be reminiscent of a raging fire or the heart of a volcano, it actually shows a cold cosmic clump of gas, dust and stars.
What do you see in this image: a porpoise or a penguin? Amateur astronomers have nicknamed this pretty galactic pair after both of these creatures — the graceful curve of a dolphin or porpoise can be seen in the blue- and red-tinged shape towards the bottom of the frame, and when paired with the pale, glowing orb just beneath it, the duo bear a striking resemblance to a bird or penguin guarding an egg.
A device resembling a plastic honeycomb yet much smaller than a bee’s stinger can steer light beams around tighter curves than ever before possible, while keeping the integrity and intensity of the beam intact. The work introduces a more effective way to transmit data rapidly on electronic circuit boards by using light.
London appears as a cluster of bright radar reflections along the River Thames in this radar image from Sentinel-1A. The satellite captured this image on March 4, 2015, in its Interferometric Wide Swath mode and dual polarization, from which the artificial color composite was generated.
During a panel at the South by Southwest Festival, NASA representatives discussed how citizen scientists have made a difference in asteroid hunting and announced the release of a desktop software application developed by NASA. The application is based on an Asteroid Data Hunter-derived algorithm that analyzes images for potential asteroids. It’s a tool that can be used by amateur astronomers and citizen scientists.
From computers, tablets and smartphones to cars, homes and public transportation, our world is more digitally connected every day. The technology required to support the exchange of massive quantities of data is critical. That's why scientists are intent on developing faster computing units capable of supporting much larger amounts of data transfer and data processing. New optical materials could serve as the nuts and bolts of future ...
Computers that function like the human brain could soon become a reality thanks to new research using optical fibers made of specialty glass, which has the potential to allow faster and smarter optical computers capable of learning and evolving. Researchers have demonstrated how neural networks and synapses in the brain can be reproduced, with optical pulses as information carriers, using special fibers made from chalcogenides.
Discovered on September 5, 1784, by astronomer William Herschel, the Veil Nebula was once a star. Now, it is a twisted mass of shock waves that appears six times larger than the full Moon in the sky. This Hubble Space Telescope image shows just a small part of the nebula, a region known as the ‘south-eastern knot.’ The entire nebula is about 50 light years in radius, and is located almost 1500 light years away.
QR codes have been used to convey information about everything from cereals to cars and new homes. But researchers think the codes have a greater potential: protecting national security. Using advanced 3-D optical imaging and extremely low light photon counting encryption, researchers have taken the ordinary QR code and transformed it into a high-end cybersecurity application to protect the integrity of computer microchips.
Two groups of astronomers have independently discovered a rare planet. The celestial body, called Kepler-432b, is one of the most dense and massive planets known so far. The teams report that the planet has six times the mass of Jupiter, but about the same size.
Astronomers using the NSF's Very Large Array found surprisingly energetic activity in what they otherwise considered a "boring" galaxy, and their discovery provides important insight on how supermassive black holes can have a catastrophic effect on the galaxies in which they reside
An estimated 285 million people are visually impaired worldwide. Age-related macular degeneration alone is the leading cause of blindness among older adults in the Western world. Optics specialist Eric Tremblay from EPFL has unveiled a new prototype telescopic contact lens — the first of its kind — giving hope for better, stronger vision. The optics specialist also debuted complementary smart glasses that recognize winks and ignore blinks
New NASA/ESA Hubble Space Telescope images capture a rare occurrence, as three of Jupiter’s largest moons parade across the giant gas planet’s banded face. Hubble took a string of images of the event which show the three satellites — Europa, Callisto and Io — in action. The planet's four moons can commonly be seen transiting the face of Jupiter. However, seeing three of them transiting at the same time is rare.
This image from Sentinel-1A’s radar shows the metropolitan area of Portugal’s capital, Lisbon. Flowing in from the upper-right corner is the Tagus River. Originating in central Spain, the Tagus is the longest river on the Iberian Peninsula, stretching over 1,000 kilometers. The river flows west through Portugal, emptying into the Atlantic Ocean at Lisbon
3-D movies, which require viewers to wear stereoscopic glasses, have become very popular in recent years. However, the 3-D effect produced by the glasses cannot provide perfect depth cues. Furthermore, it is not possible to move one’s head and observe that objects appear different from different angles. Now, researchers have developed a new way of generating high-resolution, full-color, 3-D videos that uses holographic technology.
A new way to process fiber optic signals has been demonstrated, which could double the distance at which data travels error-free through transatlantic sub-marine cables. The new method has the potential to reduce the costs of long-distance optical fiber communications, as signals wouldn’t need to be electronically boosted on their journey, which is important when the cables are buried underground or at the bottom of the ocean.
Charles H. Townes' inspiration for the predecessor of the laser came to him while sitting on a park bench, waiting for a restaurant to open for breakfast. On the tranquil morning of April 26, 1951, Townes scribbled a theory on scrap paper that would lead to the laser, the invention he's known for and which transformed everyday life and led to other scientific discoveries. The 99-year-old Nobel Prize-winning physicist died January 27, 2015.
Researchers have demonstrated that the 1935 Einstein-Podolsky-Rosen quantum mechanics paradox may be extended to more than two optical systems, paving the way for exploration of larger quantum networks. The experiment also identified properties that may be useful in establishing secure quantum communication networks where shared sequences of numbers created between two parties need to be kept secret from a third party.
The speckled object depicted here is Callisto, Jupiter’s second largest moon. This image was taken in May 2001 by NASA’s Galileo spacecraft, which studied Jupiter and its moons from 1995 until 2003. Similar in appearance to a golf ball, Callisto is covered almost uniformly with pockmarks and craters across its surface, evidence of relentless collisions.
A quantum network requires efficient interfaces over which information can be transferred from matter to light and back. Physicists have shown how this information transfer can be optimized by taking advantage of a collective quantum phenomenon. The collective interaction between the particles and the resonator can now be tuned in order to enhance the creation of single photons.
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