Physical Sciences

Experiment Confirms Existence of New Electronic State in Superconductors
Picture of a strontium ruthenate Sr2RuO4 SQUID used to demonstrate that strontium ruthenate is an odd-parity superconductor. A thin layer of a conventional superconductor is deposited on the front and two sides of a black Sr2RuO4 crystal. Au wires of 25 microns in diameter are attached to the SQUID for current measurements. Credit: John Passaneau,Penn State
Mysterious Cluster of Stars Discovered Near Milky Way
This clump of newly discovered stars in Ursa Major is in a region the size of the full moon centered on Willman 1. To be able to see this ultra-faint object in the SDSS data, the distribution of stars was filtered to enhance its signal relative to the much more numerous closer stars of the Milky Way Galaxy. (Credit: Beth Willman, New York University, The Sloan Digital Sky Survey).
Eberly College of Science Co-op Student of the Year Named
Vulnerability of Power Grid Centers on Key Junctions
Reka Albert Named a Fellow of the American Physical Society
Strong New Evidence of a Supersolid Phase of Matter
Strong New Evidence of a Supersolid Phase of Matter
Physics Gravity Model Applicable to Disease Spread
Ottar Bjornstad
Sloan Digital Sky Survey Supports Dark Energy as the Primary Constituent of the Universe
This figure shows the SDSS spectrum of a quasar at a distance of 12 billion light years.
Chandra Looks Over a Cosmic Four-Leaf Clover
The Cloverleaf quasar is a single object whose image has been reproduced four times in a cloverleaf-like arrangement through a process known as gravitational lensing.
Making Black Holes Go 'Round on the Computer
Credit: Bruegmann, Tichy, Jansen 2004 Black hole binary after about one orbit. The black surfaces represent the black holes; whatever falls behind this black hole "horizon" can never escape again. The colored plane shows a measure for the distortion of spacetime. The numerical method has succeeded in keeping the data smooth and undistorted.
Penn State Senior Wins Multiple Awards for Graduate Study in England
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