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Unravelling Coronal Mass Ejections from Our Solar System’s Origin

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…

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Physics & Astronomy

First Double Pulsar Discovery Advances Astrophysics Research

An international team of scientists from the UK, Australia, Italy and the USA have announced in today’s issue of the journal Science Express [ 8th January 2004 ] the first discovery of a double pulsar system.

They have shown that the compact object orbiting the 23-millisecond pulsar PSR J0737-3039A with a period of just 2.4 hours is not only, as suspected, another neutron star but is also a detectable pulsar, PSR J0737-3039B, that is rotating once every 2.8 seconds.

Professor A

Physics & Astronomy

New Discoveries Challenge Cold Dark Matter in Galaxy Formation

New findings pose a challenge for cold dark matter theory

“The universe is always more complicated than our cosmological theories would have it,” says Nigel Sharp, program officer for extra-galactic astronomy and cosmology at the National Science Foundation (NSF). Witness a collection of new and recently announced discoveries that, taken together, suggest a considerably more active and fastmoving epoch of galaxy formation in the early universe than prevailing theories had called for.

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Supporting Europe’s crafts sector

From ceramics to jewellery, from Greece to Slovakia, there are hundreds of small suppliers, artists, associations, museums and commercial intermediaries that comprise Europe’s craft industry. IST-project EASYCRAFT provides the business framework and technological platform to network all these craft actors, enabling them to offer value-added services demanded by today’s craft consumers, and to meet demand for new products.

Advantages of the EASYCRAFT platform

The st

Physics & Astronomy

Mars Express Fails to Contact Beagle 2: Next Attempts Planned

ESA’s Mars Express orbiter made its first attempt to establish contact with the Beagle 2 lander, after the two spacecraft separated on 19 December 2003.

The orbiter made its first pass over the Beagle 2 landing site today at 13:13 CET, but could not pick up any signal from the tiny lander. More attempts to contact Beagle 2 are planned in the days to come.

Beagle 2 was released on 19 December on a course towards the Red Planet by Mars Express, the mothership for the 400 million kil

Physics & Astronomy

Chandra Uncovers Rich Planetary Ore in Colliding Galaxies

NASA’s Chandra X-ray Observatory has discovered rich deposits of neon, magnesium, and silicon in a pair of colliding galaxies known as The Antennae. When the clouds in which these elements are present cool, an exceptionally high number of stars with planets should form. These results may foreshadow the fate of the Milky Way and its future collision with the Andromeda Galaxy.

“The amount of enrichment of elements in The Antennae is phenomenal,” said Giuseppina Fabbiano of the Harvard-Smi

Physics & Astronomy

First Companion Star Discovered Near Supernova Event

A joint European/University of Hawaii team of astronomers has for the first time observed a stellar ‘survivor’ to emerge from a double star system involving an exploded supernova.

Supernovae are some of the most significant sources of chemical elements in the Universe, and they are at the heart of our understanding of the evolution of galaxies.

Supernovae are some of the most violent events in the Universe. For many years astronomers have thought that they occur in either solitary

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Navigating Data Challenges in Global Research Projects

Did you just load that interesting new software on your PC? Then wondered where all your storage space has gone, while at the same time your PC seems to have ground to a halt? Think of the same predicament but magnified, not thousands but millions of times. Now you begin to see the problems confronting the world’s research community in cutting-edge research projects. And in particular, the challenges facing the DATAGRID project.

Most challenging processing applications on Earth

Physics & Astronomy

Too fast, too furious: a galaxy’s fatal plunge

Trailing 200,000-light-year-long streamers of seething gas, a galaxy that was once like our Milky Way is being shredded as it plunges at 4.5 million miles per hour through the heart of a distant cluster of galaxies. In this unusually violent collision with ambient cluster gas, the galaxy is stripped down to its skeletal spiral arms as it is eviscerated of fresh hydrogen for making new stars.

The galaxy’s untimely demise is offering new clues to solving the mystery of what happens to sp

Physics & Astronomy

50-Year-Old Magnetic Mystery: Quantum Behavior Meets Classic Physics

Ohio State University physicists and their colleagues have demonstrated for the first time a type of magnetic behavior that was predicted to exist more than 50 years ago.

The behavior involves a special kind of energy transition among atoms in a very small magnet, called chromium-8 (Cr8). And while scientists have long thought that the effect was controlled purely by quantum mechanics, the magnet’s behavior appears to reflect the laws of classical physics.

The classical laws of mov

Physics & Astronomy

New Insights on Magnetars: More Common Than Believed

Observations of explosions from an ultra-powerful magnetic neutron star playing hide-and-seek with astronomers suggest that these exotic objects called magnetars — capable of stripping a credit card clean 100,000 miles away — are far more common than previously thought.

Scientists from the United States and Canada present this result today at the meeting of the American Astronomical Society in Atlanta . The work is based on observations with the European Space Agency’s XMM-Newton obser

Physics & Astronomy

Astronomers Discover Potentially Brightest Star Ever Observed

A University of Florida-led team of astronomers may have discovered the brightest star yet observed in the universe, a fiery behemoth that could be as much as much as seven times brighter than the current record holder

But don’t expect to find the star – which is at least 5 million times brighter than the sun – in the night sky. Dust particles between Earth and the star block out all of its visible light. Whereas the sun is located only 8.3 light minutes from Earth, the bright star is

Physics & Astronomy

Beagle 2 Team Aims for Mars Landing Success After NASA Win

At a press briefing in London today, Professor Colin Pillinger (Open University), Beagle lead scientist, and Dr Mark Sims (University of Leicester), the mission manager, congratulated their colleagues at NASA’s Jet Propulsion Laboratory on the successful landing of the Spirit rover on Mars.

“I’d like to give congratulations to NASA and the Spirit team for getting the lander down safely,” said Professor Pillinger. “We wish them every luck.”

Adding his congratulations, Mark Sims said,

Physics & Astronomy

Close Encounter of a Cometary Kind – STARDUST flies through Comet Wild 2

At 19.44 hours GMT on 2nd January NASA’s space probe, STARDUST, successfully flew through Comet Wild 2, collecting interstellar particles and dust on its way. One of the instruments on board, the Dust Flux Monitor Instrument (DFMI), has been built by a team which include space scientists from the Open University.

Since its launch in February 1999, STARDUST has covered 3.2 billion km (2.3 billion miles). It is the first mission designed to bring samples back from a known comet. The study of c

Physics & Astronomy

NASA’s Spirit Rover Lands on Mars, Sends Stunning Images

A traveling robotic geologist from NASA has landed on Mars and returned stunning images of the area around its landing site in Gusev Crater.

Mars Exploration Rover Spirit successfully sent a radio signal after the spacecraft had bounced and rolled for several minutes following its initial impact at 11:35 p.m. EST (8:35 p.m. Pacific Standard Time) on January 3.

“This is a big night for NASA,” said NASA Administrator Sean O’Keefe. “We’re back. I am very, very proud of this

Physics & Astronomy

Galaxies in Young Universe Show Unexpectedly Mature Traits

Until now, astronomers have been nearly blind when looking back in time to survey an era when most stars in the Universe were expected to have formed. This critical cosmological blind-spot has been removed by a team, including a UK scientist, using the Frederick C. Gillett Gemini North Telescope, showing that many galaxies in the young Universe are not behaving as expected some 8-11 billion years ago.

The surprise: these galaxies appear to be more fully formed and mature than expected at th

Physics & Astronomy

Mars Express Successfully Shifts to Polar Orbit Around Mars

This morning, at 09:00 CET, the first European mission to Mars registered another operational success. The Mars Express flight control team at ESOC prepared and executed another critical manoeuvre, bringing the spacecraft from an equatorial orbit into a polar orbit around Mars.

All commands were transmitted to Mars Express via ESA’s new Deep Space Station in New Norcia, Australia. This morning, the main engine of Mars Express was fired for four minutes to turn the spacecraft into a new

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