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…
The way DNA is ‘translated’ into the specific functions of the cell strongly depends on the mechanics, so this information is of great value. Scientists…
The operational Galileo satellites will carry two types of clocks – passive hydrogen masers and rubidium atomic frequency standards. Each satellite will be…
More precisely, it refers to how this repulsion influences the spatial and dynamical motion of the electrons. The concept can be likened to the behaviour of…
He described his work at the EPL symposium, “Physics In Our Times” held today (10 May) at the Fondation Del Duca de l’Institut de France, Paris. In particular,…
“As it turns out, the vacuum is not empty – there is a difference between the vacuum and nothingness,” he stated. “Surprisingly, of all known ‘substances’, the…
“Surprisingly, it is very hard to pin down the age of a star”, the lead author of the paper reporting the results, Anna Frebel, explains. “This requires…
The Fumanya site, in the Berguedà region of central Catalonia, is so delicate that experts cannot get physically close enough to the tracks to examine them. In…
The User Forum is organised jointly with the OGF20 meeting to bring current Grid users and standards bodies together to ensure that they speak the same…
Extreme natural phenomena like tsunamis, earthquakes and hurricanes have featured prominently in the news. So, too, has the rapid spread of new diseases such…
In this study the computational Biomechanics group lead by Fulvia Taddei at the Medical Technology Lab of the Rizzoli Orthopaedic Institute in Bologna, Italy,…
They're part of a team that mapped weather on a planet beyond our solar system, a gas giant planet called HD 189733b.”The exoplanet's wind speeds probably…
By studying the behaviour of these atoms and photons in this protected environment, the physicists can illustrate fundamental aspects of quantum theory, such…
The identification of this particular class of explosions gives astronomers a valuable new constraint to help them model and understand stellar explosions. Exploding stars called novae remain a puzzle to astronomers. “Modelling these outbursts is very difficult,” says Wolfgang Pietsch of the Max Planck Institut für Extraterrestrische Physik. Now, ESA’s XMM-Newton and NASA’s Chandra space-borne X-ray observatories have provided valuable information about when individual novae emit X-rays. …
Others – particularly parents, who already are tapping the new technology to keep tabs on their kids – view it as a convenient way to ensure their children's…
“This was a truly monstrous explosion, a hundred times more energetic than a typical supernova,” said Nathan Smith of the University of California at Berkeley,…
An exploding star first observed last September is the largest and most luminous supernova ever seen, according to University of California, Berkeley,…
Feedback
