Young stars ejecting plasma could give us clues into the Sun’s past Kyoto, Japan — Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs). They often occur together with sudden brightenings called flares, and sometimes extend far enough to disturb Earth’s magnetosphere, generating space weather phenomena including auroras or geomagnetic storms, and even damaging power grids on occasion. Scientists believe that when…
Manufacturing with the World’s Largest DRAM Production
Facility Inotera Memories, Inc., a joint venture of Infineon Technologies AG and Nanya Technology Corporation, announces the inauguration of its 300mm semiconductor production facility today. Inotera will produce memory products at the world’s largest and most competitive 300mm DRAM production site with a total capacity of more than 50,000 wafer starts per month when fully operational. The first DRAM chips using 110nm trench tec
The NASA/ESA/ASI Cassini-Huygens spacecraft is due to arrive at Saturn on 1 July 2004.
This will mark the end of the spacecraft’s journey through the Solar System as well as the beginning of its tour of Saturn, its rings, moons and magnetosphere. The spacecraft will approach Saturn from below the ring plane, and will cross through the large gap between the F Ring and G Ring. The spacecraft’s main engine will fire (or ‘burn’) shortly after passing through the rings to slow Cassini-H
The answer to this fascinating question may be found on Titan, Saturn’s largest moon. University of Southampton scientist Professor Tim Leighton has speculated how the sound of splashing liquid in deep space might differ to that heard on Earth – and it’s possible that his theory could be proved later this year by NASA’s Cassini mission to Saturn. In the meantime, he has recreated the sound he believes it makes and put it on the Internet.
On Thursday 1 July 2004, NASA’s Cassini space craft w
Orion the Hunter is perhaps the best-known constellation in the sky, well placed in the winter for observers in both the northern and southern hemispheres, and instantly recognisable. Just below Orions belt (three distinctive stars in a row), the hilt of his sword holds a great jewel in the sky, the beautiful Orion Nebula. Bright enough to be seen with the naked eye, the nebula, also known as Messier 42, is a wide complex of gas and dust, illuminated by several massive and hot stars at its core
No one likes a back-seat driver. But imagine having a silent “co-pilot” in your car that isn’t a pest but can save your life, as well as those of your passengers and those in the path of your vehicle.
That’s what EyeQ, a computer chip developed by MobilEye — a company founded by Prof. Amnon Shashua, chairman of the Hebrew University of Jerusalem’s School of Engineering and Computer Science — is capable of doing.
The chip operates in conjunction with a video camera that is mount
Dust-sized wireless communications nodes, pinhead-size cameras, and other sensors; contact-lens video displays and wearable computers controlled by subvocal speech and other muscle movements; and the ability to google anything, anywhere–we will soon be able to know almost everything about everyone. Explosive advances in the technologies of sensing and data mining demand that we ask: is privacy a fundamental right or a passing phenomenon?
Privacy is mentioned in neither the U.S. Constitution
Recent demonstrations have shown how making use of digital processing technology on board satellites can help emergency services share information more effectively during natural disasters.
SkyPlexNet is a project funded by ESA Telecom. The technology that has been developed makes it possible to access satellite resources directly and manage the distribution of the multimedia contents to the remote users independently. It is relatively simple, low-cost and avoids the need to centralise da
In the concrete canyons of city centres, GPS satellite positioning systems often fail because high buildings block the signals they rely on. But an unlikely back-up for GPS is emerging: Wi-Fi. A Wi-Fi based positioning system developed in the US and the UK works best where GPS fails: in cities and inside cavernous complexes like shopping malls. And because cheap Wi-Fi technology is already appearing on a raft of gadgets like PDAs, cellphones and laptops faster than more expensive GPS receivers are
Scientists have long doubted that Phoebe came from the same disk of material that formed Saturn and most of its moons. Phoebe has an unusual orbit that is inclined to Saturn’s equator, revolves backward with respect to both Saturn’s rotation and orbital motion, and travels in the opposite direction of Saturn’s other satellites.
Phoebe is widely believed to have wandered past Saturn and been captured by that planet’s mighty gravitational field. Where it wandered from was the question.
A University of Arizona astronomer and his collaborators are using a novel camera to hunt for extrasolar planets.
The project is being funded over the next five years by a $545,000 National Science Foundation award. NSF awarded the highly competitive Faculty Early Career Development (CAREER) grant to Associate Professor Laird M. Close. The CAREER program is a foundation-wide activity that offers the NSF’s most prestigious awards for new faculty members. The CAREER program recognizes
For the past several years, a team of University of California astrophysicists working at Los Alamos National Laboratory have been using a cluster of roughly 300 computer processors to model some of the most intriguing aspects of the Universe. Called the Space Simulator, this de facto supercomputer has not only proven itself to be one of the fastest supercomputers in the world, but has also demonstrated that modeling and simulation of complex phenomena, from supernovae to cosmology, can be done on a
NASA’s Chandra X-ray Observatory has revealed new evidence that extremely hot gas exists in a large region at the Milky Way’s center. The discovery came to light as a team of astronomers used Chandra’s unique resolving power to study a region about 100 light years across. The Marshall Center manages the Chandra program.
A long look by NASA’s Chandra X-ray Observatory has revealed new evidence that extremely hot gas exists in a large region at the center of the Milky Way. The intensi
NASA’s Cassini-Huygens spacecraft carrying a $12.5 million University of Colorado at Boulder instrument package is expected to enter Saturn’s orbit June 30, beginning a four-year mission to probe the planet, its fabulous ring system and bizarre moons.
Launched Oct. 15, 1997 from Cape Canaveral, Fla., the NASA spacecraft has traveled more than 2 billion miles during a roundabout, 6.7-year journey to the ringed planet. The most ambitious planetary mission ever, the $3 billion international proje
The University of Illinois at Urbana-Champaign has received a grant from the Defense Advanced Research Projects Agency to create a photonic research center to develop ultra-fast light sources for high-speed signal processing and optical communications systems. The grant will provide $6.2 million in funding over four years.
The Hyper-Uniform Nanophotonic Technology Center is directed by Norman K.Y. Cheng, a professor of electrical and computer engineering and a researcher at the university’
Project marks unique collaboration with NASA
NASA’s Far Ultraviolet Spectroscopic Explorer (FUSE) satellite will reach a major milestone on Thursday, June 24, 2004 – the five-year anniversary of its launch atop a Delta-II rocket from Cape Canaveral in Florida.
The 18-foot tall, 3,000 pound satellite continues to operate from its perch nearly 500 miles above the Earth’s surface, gathering unique data about everything from planets and nearby stars to galaxies and quasars billi
IPv6 will play a key role in the next generation Internet. It promises to deliver better quality services than the existing Internet, but how can we be sure? IST project 6QM was set up to ensure service providers deliver what they promise.
The 6QM project has developed technology to measure the quality of service (QoS) in IPv6 networks. “A prominent feature that we are concentrating on in our measurement system is the capability to perform passive flow measurement,” says Rudolf Roth, proje