New Map of the Universe Reveals Its History for the Past Six-Billion Years
Green orb-like object against dark background.
Study Reveals Milky Way Stars That Wander but Are Not Lost
This illustration shows measurement data of the metal content of stars observed by SDSS-III's SEGUE-2 survey in the disk of our Galaxy. Credit: Judy Cheng and Connie Rockosi (University of California, Santa Cruz) and the 2MASS Survey.
New Astronomy Tool Peers Through the Heart of the Milky Way
This "first-light" field of stars observed byAPOGEE keys in on a large region in the disk of our galaxy towards the constellation Cygnus. Credit: P. Frinchaboy (Texas Christian University), J. Holtzman (New Mexico State University), M. Skrutskie (University of Virginia), G. Zasowski (University of Virginia), NASA, JPL-Caltech and the WISE Team.
Decades-Old Conclusion about Energy-Making Pathway of Cyanobacteria is Corrected
Bryant's team performed biochemical and genetic analyses on a cyanobacterium called Synechococcus sp. PCC 7002, scouring its genome for genes that might be responsible for making alternative energy-cycle enzymes. Credit: Bryant lab, Penn State
First Electronic Optical Fibers with Hydrogenated Amorphous Silicon are Developed
A bed of amorphous hydrogenated silicon wires that were prepared in the pores of optical fibers. The wires have been chemically etched out of the optical fiber to reveal them. Scale bar is 100 um. Inset: An array of amorphous hydrogenated silicon tubes deposited in an optical fiber. The optical fiber has been cleaved in half to reveal the array of tubes. The very thin glass walls of the fiber surrounding each tube are largely obscured. Scale bar is 5um. Credit: John Badding lab, Penn State University.
Satellite Images of Nighttime Lights Help Track Disease Outbreaks
Researchers analyzed the seasonal changes in nighttime-light brightness in Niger’s largest cities. The height of the peaks represents the brightness of nighttime lights over the course of one year. Credit: Nita Bharti, Princeton University.
Evidence Is Found that Our Milky Way Galaxy is Destroying Its Dwarf-Galaxy Neighbors
An artist's impression of the four tails of the Sagittarius Dwarf Galaxy (the orange clump on the left of the image) orbiting the Milky Way. Credit: Credit: Amanda Smith, Institute of Astronomy, University of Cambridge
Penn State University's Eberly College of Science and Its Forensic Science Program Establish Partnership with the University of Split in Croatia
Dragan Primorac (right), adjunct associate professor of forensic science at Penn State University and Mitchell Holland, associate professor of biochemistry and molecular biology and director of the Forensic Science Program at Penn State University, pose next to the Nittany Lion Shrine on the Penn State University Park campus. Credit: Penn State University
Peculiar Cosmic Explosion on Christmas 2010 Continues to Intrigue Astronomers
Frame from animation that interprets the Christmas burst as the merger of a red giant and a neutron star. Credit: NASA/Goddard Space Flight Center
Asteroid Video Captured by NASA's Swift Satellite
Starry sky with gray overlay.
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