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<p>Lithospheric magnetic field</p>

<p>Courtesy: ESA</p>
Earth’s Magnetic Field Reveals Details Of A Dramatic Past
ESA’s Swarm satellites are seeing fine details in one of the most difficult layers of Earth’s magnetic field to unpick – as well as our planet’s magnetic history imprinted on Earth’s crust.
<p>Evolution of a spin and its uncertainty as they orbit due to a magnetic field</p>

<p>Courtesy of: ICFO</p>
Scientists Evade The Heisenberg Uncertainty Principle
The study, published in Nature, reports a technique to bypass the Heisenberg uncertainty principle.

<p>Image courtesy of NCSU</p>
Using Light to Control Curvature of Plastics
Researchers have developed a technique that uses light to get two-dimensional (2-D) plastic sheets to curve into three-dimensional (3-D) structures, such as spheres, tubes or bowls.
<p>This spectacular image from the VLT Survey Telescope shows the Cat’s Paw Nebula (NGC 6334, upper right) and the Lobster Nebula (NGC 6357, lower left). These dramatic objects are regions of active star formation where the hot young stars are causing the surrounding hydrogen gas to glow red. The very rich field of view also includes dark clouds of dust. With around two billion pixels this is one of the largest images ever released by ESO. A zoomable version of this giant image is available here.</p>

<p>Note that the circular features in the image around bright stars are not real, they are due to reflections within the optics of the telescope and camera.</p>


The Cat’s Paw and Lobster Nebulae
The beautiful, glowing, cosmic clouds of gas and dust catalogued as NGC 6334 and NGC 6357 now have new names.

First Look at Magnetism of Real Nanoparticle
Scientist help solve a unique problem: to model magnetism at the atomic level using experimental data from a real nanoparticle.
Dark Matter May be Smoother than Expected
Analysis of a giant new galaxy survey suggests that dark matter may be less dense and more smoothly distributed throughout space than previously thought.
Holograms from Neutrons Created
For the first time, scientists have used neutron beams to create holograms of large solid objects, revealing details about their interiors in ways that ordinary laser light-based visual holograms cannot.

Science Facts

Does The Sun Go A Bit Wobbly?

by NASA Marshall Space Flight Center and

: Image Courtesy NSSDC Our Sun may seem an enduring, unwavering beacon in the sky, but in truth it has a 'heartbeat' of sorts--a pulsation between dimmer and brighter phases so slow that it only 'beats' 9 times each century! It's understandable that you might not have noticed. The pulsing is not only slow, it's also subtle. The total energy coming from the Sun only varies by about 0.1% over each 11-year cycle. For a long time scientists didn't notice it either, which is why the Sun's intensity is called, ironically, the 'solar constant.'

The intensity of the Sun varies along with the 11-year sunspot cycle. When sunspots are numerous the solar constant is high (about 1367 W/m2); when sunspots are scarce the value is low (about 1365 W/m2). Eleven years isn't the only 'beat,' however. The solar constant can fluctuate by ~0.1% over days and weeks as sunspots grow and dissipate. The solar constant also drifts by 0.2% to 0.6% over many centuries, according to scientists who study tree rings.

These small changes can affect Earth in a big way. For example, between 1645 and 1715 (a period astronomers call the 'Maunder Minimum') the sunspot cycle stopped; the face of the Sun was nearly blank for 70 years. At the same time Europe was hit by an extraordinary cold spell: the Thames River in London froze, glaciers advanced in the Alps, and northern sea ice increased. An earlier centuries-long surge in solar activity (inferred from studies of tree rings) had the opposite effect: Vikings were able to settle the thawed-out coast of Greenland in the 980s, and even grow enough wheat there to export the surplus to Scandinavia.

Magnitude of an Astronomical Object

'Visual magnitude' is a scale used by astronomers to measure the brightness of a star. The term 'visual' means the brightness is being measured in the visible part of the spectrum, the part you can se ...
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24 GPS satellites orbit Earth.
Tick-Tock Atomic Clock

Modern navigators rely on atomic clocks. Instead of old-style springs or pendulums, the natural resonances of atoms -- usually cesium or rubidium -- provide the steady 'tick' of an atomic clock. The b ...
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Nuclides & Isotopes

An atom that has an unbalanced ratio of neutrons to protons in the nucleus seeks to become more stable. The unbalanced or unstable atom tries to become more stable by changing the number of neutrons a ...
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