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…
Now that astronomers are finding rocky worlds orbiting distant stars, they're asking the next logical questions: Do any of those worlds have volcanoes? And if…
The recovery follows a serious communications malfunction on 8 July, when the Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite…
It's a “galaxy-eats-galaxy” universe out there: According to current models of galaxy evolution, galaxies grow by ingesting other star systems. In particular,…
A researcher at the Hebrew University of Jerusalem, together with Israeli and foreign collaborators, has revealed how physical qualities — and not only…
Like the chocolates and fruity candies inside a piñata, these asteroids come in assorted colors and compositions. Some are dark and dull; others are shiny and…
The ability to control light pulses on an integrated chip-based platform is a major step toward the realization of all-optical quantum communication networks,…
The modern world — with its ubiquitous electronic devices and electrical power — can trace its lineage directly to the discovery, less than two centuries…
The NIST experiments, described in a forthcoming paper,* repeatedly produced light pulses that each possessed two exactly opposite properties—specifically,…
Of the four fundamental forces that govern interactions in the universe, gravity may be the most familiar, but ironically it is the least understood by…
The devices, which include transistors and diodes, could be used in nanometer-scale robotics, nano-electromechanical systems (NEMS), micro-electromechanical…
The breakdown monitoring which is the object of this invention is achieved in real time by means of a photo diode which is integrated in the semiconductor…
A very common method for determining the occupancy of a rail track are the so-called track circuits. This method involves applying a low voltage to a pair of…
A large part of gene regulation in eukaryotes takes place at the level of RNA-molecules. A group of endogenous regulatory RNA-molecules, the so-called…
Taken in 1997, a year before the French won the World Cup, Brazilian Carlos's goal held France to a frustrating draw but, now, a group of French physicists –…
The GOES fleet help NOAA forecasters track life-threatening weather and solar activity that can impact the satellite-based electronics and communications…
For the casual observer it is fascinating to watch the orderly and seemingly choreographed motion of hundreds or even thousands of fish, birds or insects….
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