Four synchronized planets reveal clues to how planets form
This animation illustrates the Kepler–223 planetary system, which has long-term stability because its four planets interact gravitationally to keep the beat of a carefully choreographed dance as they orbit their host star. CREDIT: W. Rebel (license granted for free worldwide public-domain use)
SAMSI Poised to Help Hone Gravitational Wave Astronomy, Astronomers' New Sense
samsi
Caught in the act: 3D structure of an RNA-modifying protein determined in action
Structure of the RNA-modifying protein RlmN, shown in a ribbon-diagram. The RlmN (blue ribbon) is trapped in the middle of its reaction while it is bound to transfer RNA (shown in grey, stick format). Iron and sulfur atoms are shown as orange and yellow spheres. Selected amino acids, cofactors, and nucleobases are shown in stick format and are colored by atom type. CREDIT: Penn State
Your viruses could reveal your travel history, and more
Reconstruction of a herpes simplex virus (HSV) capsid, based on data from electron microscopy studies. Credit: University of Wisconsin-Madison
Nobel Laureate, Thomas R. Cech, to Give Three Free Lectures at Penn State: The Marker Lectures in Genetic Engineering and Lecture on Science Education set for April 7 and 8
Thomas R. Cech
Keeping ribosomes stuck may stop virulent bacteria strain in its tracks
Penn State researchers developed antibiotic compounds that stopped Franscisella Tularensis, a virulent strain bacteria used in biowarfare, from spreading in animal cells. Image: provided by Girish Kirimanjeswara
Stone Memorial Lecture set for March 21
Eva Harris
Clifford C. Clogg Memorial Lectures set for March 21, 22, and 23
Mark Handcock
New method reveals high similarity between gorilla and human Y chromosome
Jim (on the right), whose Y chromosome was sequenced, together with Dolly, his mother, and Binti, his sister. Credit: San Diego Zoo Global
New trigger for self-powered mechanical movement
This image illustrates pumping in two directions at once with an enzyme patch. A patch of enzymes immobilized on a surface acts as a fluid pump. The fluid, and the small particles (green spheres) carried by the fluid, can simultaneously be pumped away from the patch (blue) in some parts of the chamber and toward the patch (red) in other locations. This behavior changes over time and is due to the changes in fluid density that the reaction produces. Credit: University of Pittsburgh
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