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…
Graphene is up to the job
In conventional electronics, a great deal of effort is devoted to eliminating stochastic resonance (SR) — the annoying hiss that generally hinders the…
Black holes appear to play a fundamental role in how galaxies evolve throughout their life during a phase in which they are active and consume material from…
Rice University scientists have discovered a two-dimensional alloy with an optical bandgap that can be tuned by the temperature used to grow it.
At 12:52 p.m. EDT on Sept. 22, the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) spacecraft came…
The question has now been settled by studying 30 000 cosmic-ray particles with energies a million times greater than those of the protons accelerated in the…
If a transparent dielectric material like water or glass is illuminated by visible or infrared light it is transmitted without loss. This quickly changes if…
Airplanes thundering a few dozen meters over the rooftops of residences, roaring ship engines that frighten sea creatures, driving cars that create a basic…
A new paper in the journal Astrobiology suggests NASA and others hunting for proof of Martian biology in the form of “microfossils” could use the element…
A reoccurring challenge in storage technology is the continuing demand for smaller “bits”, which is the fundamental storage unit. In magnetic memories this…
“This is a very important event, and we are very happy that the first users have now arrived at European XFEL so we can do a full scale test of the facility”…
Asteroid 300163 (2006 VW139) was discovered by Spacewatch in November 2006 and then the possible cometary activity was seen in November 2011 by Pan-STARRS….
To fly safely, drones need to know their precise position and orientation in space at all times. While commercial drones solve this problem using GPS, this…
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a…
Metabolic processes inside living organisms involve a large variety of bio-molecules. These molecules are produced by specific enzymatic reactions. One example…
Fabricating hybrid semiconductor lasers on materials other than the commonly used silicon-on-insulator (SOI) substrates has proved challenging. Now, A*STAR…
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