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27-May-2021
DOE awards $100 million to early-career scientists for mission-critical research
DOE/US Department of Energy
The US Department of Energy (DOE) today announced the selection of 83 scientists who will receive a total of $100 million in funding through its Early Career Research Program.
26-May-2021
Precise measurement of pions confirms understanding of fundamental symmetry
DOE/US Department of Energy
Scientific rules about "chiral symmetry" predict the existence of subatomic particles called pions. The lifetime of a neutrally charged pion is tied to breaking of chiral symmetry. Until recently, measurements of this lifetime have been much less precise than calculations from theory. Physicists have now measured a pion's lifetime more precisely than ever before.
26-May-2021
Signs of "turbulence" in collisions that melt gold ions
DOE/US Department of Energy
A new analysis of collisions of gold ions shows signs of a "critical point," a change in the way one form of matter changes into another. The results hint at changes in the type of transition during the shift from particles to the quark-and-gluon "soup" that filled the early universe. This helps scientists understand how particles interact and what holds them together.
24-May-2021
California and Massachusetts schools win DOE's 31st National Science Bowl®
DOE/US Department of Energy
The U.S. Department of Energy (DOE) today announced that the student team from North Hollywood Senior High School in North Hollywood, California won the 2021 DOE National Science Bowl® (NSB). In the middle school competition, students from Jonas Clarke Middle School in Lexington, Massachusetts took home first place earlier this month.
24-May-2021
Champions in science: Profile of Seth Johnson, National Science Bowl competitor
DOE/US Department of Energy
Supercomputer programmer Seth Johnson might be the ultimate insider at the National Science Bowl® competitions. He competed on his high school NSB team and now volunteers at the regional and national events.
19-May-2021
Searching for the origins of presolar grains
DOE/US Department of Energy
Some meteorites contain microscopic grains of stardust created by nucleosynthesis before our solar system existed. Many grains contain sulfur isotopes that are clues to the grains' origins in novae and supernovae. Sulfur production from nucleosynthesis depends on the prior production of argon-34. Scientists created and studied argon-34 and established criteria for determining whether particular grains originated in novae or supernovae.
18-May-2021
Cooling fusion plasmas from the inside out
DOE/US Department of Energy
Cooling a 150-million-degree plasma in an orderly and controllable fashion. Researchers at the DIII-D National Fusion Facility are studying a new method that uses boron-filled diamond shells to quickly cool fusion plasmas. Early experimental results and computer modeling indicate this method could avoid problems with traditional cooling approaches.
14-May-2021
Not just disturbance: Turbulence protects fusion reactor walls
DOE/US Department of Energy
To operate successfully, ITER and future fusion energy reactors cannot allow melting of the walls of the divertor plates that remove excess heat from the plasma in a reactor. These walls are especially at risk of melting when heat is applied to narrow areas. Now, however, an extreme-scale computing analysis indicates that turbulence will reduce that risk.
14-May-2021
Scientists check the math for improved models of liquids and gases in Earth's atmosphere
DOE/US Department of Energy
Discretization is the process of converting continuous models and variables, such as wind speed, into discrete versions to make equations that are compatible with computer analysis. Energy consistent discretization ensures that the method does not have any inaccurate sources of energy that can lead to unstable and unrealistic simulations. In this research, scientists provided a discretization for equations used by global models of the Earth's atmosphere.