Physics

“Dust Trap” Solves Mystery of Planet Formation

It’s always sobering to remember how much we still don’t know about the universe. Despite finding hundreds of exoplanetary systems and numerous stars surrounded by proto-planetary disks of gas and dust, it’s still not clear how the latter become the former. But observations by the recently-opened Atacama Large Millimeter/submillimeter Array (ALMA) have shed light on this question by finding a “safe haven” for growing pre-planets around a relatively nearby star.

Scientists generally agree

High-impact Sandia physicist publishes technical, yet personal, memoir

The swan song of retiring Sandia physicist Tom Sanford is in a technical, yet personal, memoir about experiments that changed the course of research at particle accelerators around the world.

Second life for possible spintronic materials: Manganese, gallium nitride merged in uniform layer

Ten years ago, scientists were convinced that a combination of manganese and gallium nitride could be a key material to create spintronics, the next generation of electronic devices that operate on properties found at the nanoscale.

NASA to Host June 7 Mars Rover Opportunity Teleconference

NASA will hold a media teleconference at 9 a.m. PDT (noon EDT) on Friday, June 7, to provide an update about the long-lived Mars Exploration Rover Opportunity. The 10th anniversary of this rover's launch is next month.

Massachusetts Students Speak With Space Station Astronauts

Expedition 36 crew members Chris Cassidy, Luca Parmitano, and Karen Nyberg will speak from the International Space Station to students at Douglas Public Schools in Massachusetts at 11:35 a.m. EDT, Monday, June 10.

NASA Flights Target How Pollution, Storms and Climate Mix

NASA aircraft will take to the skies over the southern United States this summer to investigate how air pollution and natural emissions, which are pushed high into the atmosphere by large storms, affect atmospheric composition and climate.

Massachusetts Students Speak With Space Station Astronauts

Expedition 36 crew members Chris Cassidy, Luca Parmitano, and Karen Nyberg will speak from the International Space Station to students at Douglas Public Schools in Massachusetts at 11:35 a.m. EDT, Monday, June 10.

NASA's Orion Spacecraft Proves Sound Under Pressure

After a month of being poked, prodded and pressurized in ways that mimicked the stresses of spaceflight, NASA's Orion crew module successfully passed its static loads tests on Wednesday.

'Temporal cloaking' could bring more secure optical communications

(Phys.org) —Researchers have demonstrated a method for "temporal cloaking" of optical communications, representing a potential tool to thwart would-be eavesdroppers and improve security for telecommunications.

Researchers increase NMR/MRI sensitivity through hyperpolarization of nuclei in diamond

(Phys.org) —Today's nuclear magnetic resonance (NMR) and Magnetic Resonance Imaging (MRI) technologies, like quantum information processing and nuclear spintronic technologies, are based on an intrinsic quantum property of electrons and atomic nuclei called "spin." Electrons and nuclei can act like tiny bar magnets with a spin that is assigned a directional state of either "up" or "down." NMR/MRI signals depend upon a majority of nuclear spins being polarized to point in one direction. The greater the polarization, the stronger the signal. Researchers with the U.S.

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