Single atoms work great as catalysts, but they usually don't stay single for long. Argonne scientists are part of a team that uses high-temperature shock waves to keep them in their place.
Materials Science
Sep 26, 2019
0
172
NASA's Chandra X-ray Observatory has captured many spectacular images of cosmic phenomena over its two decades of operations, but perhaps its most iconic is the supernova remnant Cassiopeia A.
Astronomy
Aug 27, 2019
0
339
When energy is added to uranium under pressure, it creates a shock wave, and even a tiny sample will be vaporized like a small explosion. By using smaller, controlled explosions, physicists can test on a microscale in a safe ...
Plasma Physics
Aug 23, 2019
4
688
This may come as a shock, if you're moving fast enough. The shock being shock waves. A balloon's 'pop' is shock waves generated by exploded bits of the balloon moving faster than the speed of sound. Supersonic planes generate ...
General Physics
Aug 9, 2019
0
72
The Magnetospheric Multiscale mission—MMS—has spent the past four years using high-resolution instruments to see what no other spacecraft can. Recently, MMS made the first high-resolution measurements of an interplanetary ...
Space Exploration
Aug 8, 2019
2
306
Every single day, many tons of tiny rocks—smaller than pebbles—hit the Earth's atmosphere and disintegrate. Between frequent shooting stars we wish on in the night sky and the massive extinction-level asteroids that we ...
Space Exploration
Jun 27, 2019
1
3
For the first time, astronomers have found two giant clusters of galaxies that are just about to collide. This observation can be seen as a missing 'piece of the puzzle' in our understanding of the formation of structure ...
Astronomy
Jun 24, 2019
18
1
If you're not a plasma physicist, exploding electrical wires underwater may sound like a bad idea. But it's actually a way to study shock waves, the propagating disturbances that move faster than the speed of sound.
Plasma Physics
May 2, 2019
0
26
Using ultrashort laser pulses lasting a few picoseconds (trillionths of a second), Lawrence Livermore National Laboratory (LLNL) researchers have discovered an efficient mechanism for laser ablation (material removal) that ...
Optics & Photonics
Apr 4, 2019
0
120
We all know bubbles from soapy baths or sodas. These bubbles of everyday experience on Earth are up to a few inches across, and consist of a thin film of liquid enclosing a small volume of air or other gas. In space, however, ...
Astronomy
Feb 28, 2019
4
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