Male Sex Chromosome Losing Genes by Rapid Evolution, Study Reveals
A wallaby is a marsupial. Credit: Anton Nekrutenko, Penn State
Active Genes Discovered in the Developing Mammal Brain
Samples of mouse RNA are being prepared for analysis by Xinwei Han, a Penn State graduate student in biology and an author of the research paper. Credit: Christina Manbeck, Penn State
Penn State Astronomers Ranked High in Scientific Impact
Peter Mészáros and Donald Schneider
Secrets Revealed About How Disease-Causing DNA Mutations Occur
This chart shows the type of data used in a multi-scale wavelet analysis. Both lines indicate the frequency of recognition sites for the enzyme topoisomerase.
New "Timetree of Life" Initiative Illuminates the Antiquity of Life on Earth
Cover of "The Timetree of Life" book by S. Blair Hedges and Sudhir Kumar.
Unusual Shape of Exploded Star Puzzles Scientists
Credit: X-ray: NASA/CXC/PSU/S. Park and J. Lee); Infrared: NASA/JPL-Caltech
Hydrothermal Vent Expedition is Educational Experience for Scientists and Middle-School Students
Certain mussels and anemones can live near hydrothermal vents. Credit: Charles Fisher, Penn State
Mobile DNA Elements in Woolly Mammoth Genome Give New Clues to Mammalian Evolution
Drawing of a woolly mammoth
Probing Question: Can a Pandemic be Predicted?
Astronomy Team Probes Edge of Supermassive Black Hole
An artist's depiction of the accretion of a thick ring of dust into a supermassive black hole. The accretion produces jets of gamma rays and X-rays. Credit: ESA / V. Beckmann (NASA-GSFC)
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