Science & Technology

Presolar grains — tiny bits of solid interstellar material formed before the sun was born — are sometimes found in primitive meteorites. But a noble gas analysis from physicists in Arts & Sciences reveals evidence of presolar grains in part of a meteorite where they are not expected to be found.

A balloon-borne scientific instrument designed to study the origin of cosmic rays is taking its second turn high above the continent of Antarctica three and a half weeks after its launch.

A team of Washington University in St. Louis scientists at McMurdo Station, Antarctica, successfully launched its SuperTIGER (Super Trans-Iron Galactic Element Recorder) instrument, which is used to study the origin of cosmic rays. 

Researchers from Washington University in St. Louis will develop and deploy a new telescope designed to measure the linear polarization of X-rays arriving from distant neutron stars, black holes and other exotic celestial objects. The instrument will be flown on a minimum of two scientific balloon launches as early as summer 2021. The NASA-funded effort builds on promising results from a previous balloon-borne mission known as X-Calibur and is dubbed XL-Calibur.

RIP Mars rovers Spirit and Opportunity. But the geosciences data they collected will live on at Washington University, under the care of a team of archivists in Arts & Sciences. The data includes details about both rovers’ every move as well as many images that helped this space mission capture the public’s imagination.

Under a five-year, $7 million cooperative agreement led by Jeffrey Gillis-Davis, research associate professor of physics in Arts & Sciences, researchers will investigate fundamental questions at the intersection of space science and human space exploration.

Nobel laureate Kip Thorne will visit Washington University to deliver a public talk on Thursday, Nov. 7. Thorne’s work in theoretical physics examines gravitational waves, the Big Bang and what these phenomena tell us about the dynamics of the universe.

The team that worked on the Mars exploration rovers Spirit and Opportunity received the Distinguished Science Award from the Huntsville, Ala., chapter of the National Space Club. The award recognizes outstanding contributions in research and discovery that expand knowledge and understanding of space. Raymond Arvidson, the James S. McDonnell Distinguished University Professor in Arts & Sciences, is the mission’s deputy principal investigator.

While evidence for dark matter is strong, the nature of dark matter has remained a mystery. James H. Buckley, professor of physics in Arts & Sciences, is part of a research team searching for axions — very light, invisible particles streaming through the cosmos.

Arts & Sciences researcher Kun Wang studies the melted rock that cools into tektites after a meteorite strikes Earth to gain insights into the giant impact event that formed the moon. His latest research was published Aug. 15 in the journal Geochimica et Cosmochimica Acta.