Saturn's F ring is certainly a curious structure. Orbiting the giant planet 82,000 kilometers above its equatorial cloud tops, the F ring is a ropy, twisted belt of bright ice particles anywhere from 30-500 km wide. It can ...
Space Exploration
Jun 3, 2013
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Apoptosis is a programmed death mechanism that eliminates unwanted or injured cells from the body. Defects in apoptotic regulation can lead to serious physiological problems such as tissue damage or uncontrolled cancerous ...
Biochemistry
May 8, 2013
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(Phys.org)—This image shows an object known as HH 151, a bright jet of glowing material trailed by an intricate, orange-hued plume of gas and dust. It is located some 460 light-years away in the constellation of Taurus ...
Astronomy
Feb 26, 2013
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Recently I posted an image of two of Saturn's shepherd moons, Pandora and Prometheus, captured by Cassini in a face-off across the spindly F ring. Now here's a much wider-angle view of the gas giant's rings, seen by Cassini ...
Space Exploration
Dec 24, 2012
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One can often begin to understand a protein's function by identifying its accomplices in the cell. Accordingly, scientists have developed diverse biochemical assays that essentially allow them to go 'fishing' for interaction ...
Cell & Microbiology
Oct 10, 2012
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Most proteins have a single 'correct' way to fold; typically, improperly folded proteins are promptly eliminated by cells. However, certain misfolded proteins have a tendency to aggregate in dense fibrous clumps known as ...
Cell & Microbiology
Oct 5, 2012
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(Phys.org)—For more than 50 years, language scientists have assumed that sentence structure is fundamentally hierarchical, made up of small parts in turn made of smaller parts, like Russian nesting dolls.
Social Sciences
Sep 21, 2012
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(Phys.org)—Clumpy particles in Saturn's B-ring provide stark contrast to the delicately ordered ringlets seen in the rest of this view presented by the Cassini spacecraft.
Space Exploration
Sep 11, 2012
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(Phys.org)—The space between stars is not empty—it contains copious amounts of gas and dust. Astronomers estimate that about 5-10% of the total mass of our Milky Way galaxy is contained in the interstellar gas and dust, ...
Astronomy
Aug 28, 2012
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With its large clumps of cascading white tendrils, the Hericium erinaceus looks less like a mushroom and more like a lion's mane (its nickname).
Plants & Animals
Apr 11, 2012
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