Arts & Sciences

WUSTL geoarcheologist Jennifer Smith, Ph.D., is featured a History channel documentary that solves a series of geological mysteries about the Sahara’s past. The show, part of the “How the Earth Was Made” series, explains why there are marine fossils embedded in the blocks of stone from which the pyramids are made and drawings of people swimming are scratched into the walls of desert caves.

Physics professor Stuart Solin, Ph.D., a “classic physics thinker” according to colleagues, lives by the scientific code of honesty and respect for evidence.

New calculations by an international group of theorists paint a better picture of the nature of quark stars and suggest a way for astronomers to find the quark stars among the neutron stars. But WUSTL physicist Mark Alford, commenting on the journal publication in a news article posted Jan. 15 at PhysicsWorld.com, suggests that the new work may not be the last word. Alford, who uses mathematical modeling to explore the properties of quark stars, contends that the mathematical theory it uses is only truly accurate when the quarks are millions of times denser than they are in real neutron stars.

Fed Chairman Ben Bernanke coined the phrase “the Great Moderation” back in 2004 to refer to the relative stability of the U.S. economy over the previous two decades. Many believe “The Great Recession” of the past two years has jolted the economy out of its moderate mode and back into a state of high volatility. Washington University in St. Louis economist James Morley disagrees. He argues the Great Moderation is alive and well and will help the economy recovery from this latest financial shock.

The Department of Music in Arts & Sciences will launch its spring Danforth University Center Chamber Series at 8 p.m. Thursday, Jan. 21, with a performance by harpsichordist Maryse Carlin and members of the Saint Louis Symphony Orchestra.

An international team of researchers, including Erik Trinkaus, Ph.D. professor of anthropology in Arts & Sciences, has reanalyzed the complete immature dentition of a 30,000 year-old-child from the Abrigo do Lagar Velho, Portugal. The new analysis of the Lagar Velho child shows that these “early modern humans” were modern without being “fully modern.”

Nearly 40 years after the Apollo astronauts first brought samples of the Moon to Earth for study, researchers from Washington University in St. Louis are leading an effort to return to the Moon for samples that could unlock secrets of the early Solar System. Known as MoonRise, the proposed Moon mission is one of three finalists now bidding to become NASA’s next big space science venture, a $650 million mission that would launch before 2019.

NASA’s robotic rover Spirit, bogged down in the loose soil of a Red Planet crater for months, has helped make an important scientific discovery just by spinning its wheels. “We’ve found something supremely interesting in the disturbed soil,” says WUSTL’s Raymond Arvidson, deputy principal scientist on the mission. Sulfate minerals churned up by the rover’s wheels offer evidence that this area “could have once supported life,” he explains.

Having trouble figuring out what to get that high school senior on your gift list this holiday season? Or parents, want to make sure your 17-year-old keeps his or her mind on the right track while on winter break? A book might provide a simple solution. Washington University in St. Louis faculty offer their suggestions for the one book — in a few cases two or three — that a high school senior should read before heading off to college, whether to be better prepared for the college classroom or for living away from home or simply to be a more well-rounded person.

Robert Kranz has devoted much of his caeer to understanding cytochrome c, a little-noted molecule but one as important to life as DNA or hemoglobin. Because bacteria and people use different systems to assemble this molecule, his work may open the door to novel antibiotics and other medicinal drugs.