Hubble eyes a loose spiral galaxy
(Phys.org)—The Hubble Space Telescope has spotted the spiral galaxy ESO 499-G37, seen here against a backdrop of distant galaxies, scattered with nearby stars.
Nov 26, 2012
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Nov 26, 2012
4.8 / 5 (10)
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Novel archaea found in geothermal microbial mats
(Phys.org)—Our oldest national park may hold answers to questions about the activities of microbial communities that, in turn, may help in developing bioenergy technologies or safely storing carbon dioxide. ...
Nov 21, 2012
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Viable and fertile fruit flies in the absence of histone H3.3
Histones—proteins that package DNA—affect cell function differently than previously assumed: the cell doesn't need the histone H3.3 to read genes. Molecular biologists from the University of Zurich demonstrate ...
Nov 13, 2012
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MicroRNAs in plants: Regulation of the regulator
MicroRNAs are essential regulators of the genetic program in multicellular organisms. Because of their potent effects, the production of these small regulators has itself to be tightly controlled. That is ...
Nov 08, 2012
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The nucleus of a comet undone: Scientists monitor Hergenrother's breakup
(Phys.org)—The Hergenrother comet is currently traversing the inner-solar system. Amateur and professional astronomers alike have been following the icy-dirt ball over the past several weeks as it has been ...
Nov 05, 2012
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Using the world's rarest element to study the world's rarest force
In September 2012 an experiment at the TRIUMF accelerator complex reached a milestone. The FrPNC collaboration —-short hand for Francium Parity Non-conservation—-succeeded in trapping several kinds of ...
Oct 29, 2012
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Watching the cogwheels of the biological clock in living cells
Our master circadian clock resides in a small group of about 10'000 neurons in the brain, called the suprachiasmatic nucleus. However, similar clocks are ticking in nearly all cells of the body, as demonstrated ...
Oct 26, 2012
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Researchers decipher the mecanism of membrane fission
A cell is composed of a nucleus which encloses its genetic information and the cytoplasm which is itself confined by an external membrane separating the cell from the outside world. The impermeability of the membrane and ...
Oct 26, 2012
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Slooh space camera to broadcast a live view of comets converging in the night-sky
A fantastic, one-of-a-kind celestial happening will occur on Tuesday, October 23rd, as Comet 168P/Hergenrother and Comet C/2012 J1 (Catalina) will pass each other in space like ships in the night—but only during a very ...
Oct 22, 2012
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The changing shape of an atomic nucleus
The nucleus of an atom can have different shapes that co-exist. European scientists investigated nuclear shape change with advanced experimental techniques.
Oct 16, 2012
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Monitoring interactions between proteins in their natural environment with intracellular labeling technique
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' ...
Oct 10, 2012
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Deep Impact spacecraft completes rocket burn
(Phys.org)—NASA's Deep Impact spacecraft completed a firing of its onboard rocket motors earlier today. The maneuver began at 1 p.m. PDT (4 p.m. EDT), lasted 71 seconds, and changed its velocity by 4.5 ...
Oct 05, 2012
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No evidence for 30-nm chromatin fibers in the mouse genome
Scientists in Canada and the United States have used three-dimensional imaging techniques to settle a long-standing debate about how DNA and structural proteins are packaged into chromatin fibres. The researchers, ...
Oct 04, 2012
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Making and breaking heterochromatin
To fit the two-meter long DNA molecule into a cell nucleus that is only a few thousandths of a millimetre in size, long sections of the DNA must be strongly compacted. Epigenetic marks maintain these sections, ...
Sep 25, 2012
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Under-twisted DNA origami delivers cancer drugs to tumors
Scientists at Karolinska Institutet in Sweden describe in a new study how so-called DNA origami can enhance the effect of certain cytostatics used in the treatment of cancer. With the aid of modern nanotechnology, scientists ...
Sep 13, 2012
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