Gamma-ray emission from Terzan 5

(PhysOrg.com) -- The H.E.S.S. telescope system in Namibia discovered a new source of very-high-energy gamma-rays from the direction of the globular cluster Terzan 5. Being very likely located in the outer parts of Terzan ...

Weighty mission for scientists: redefine the kilo

Scientists said Monday they were moving closer to coming up with a non-physical definition of the kilo after discovering the metal artefact used as the international standard had shed a little weight.

Self-healing autonomous material comes to life

You've seen it in movies: the human-like, robot assassin quickly regenerates its structure after being damaged beyond recognition. This "Terminator" scenario is becoming less far-fetched as recent advances in structural health ...

Researchers develop algebraic model to monitor cellular change

Researchers at New York University's Courant Institute of Mathematical Sciences have developed a novel algebraic model of DNA "hybridization," a process central to most biotechnology devices that monitor changes in cell's ...

Bringing down the electric grid

Last March, the U.S. Congress heard testimony about a scientific study in the journal Safety Science. A military analyst worried that the paper presented a model of how an attack on a small, unimportant part of the U.S. power ...

Vulnerability in commercial quantum cryptography

The Norwegian University of Science and Technology (NTNU) and the University of Erlangen-Nurnberg together with the Max Planck Institute for the Science of Light in Erlangen have recently developed and tested a technique ...

Cometary Impact on Neptune Two Centuries Ago

(PhysOrg.com) -- (PhysOrg.com) -- A comet may have hit the planet Neptune about two centuries ago. This is indicated by the distribution of carbon monoxide in the atmosphere of the gas giant that researchers - among them ...

Pin-pointing water in space

(PhysOrg.com) -- Water is regarded as a key ingredient for life - and water exists plenty in the universe. Now scientists have found the precious element in a disk around a young star, similar to our Sun. This disk, supposedly ...

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