When a shock wave travels through material and reaches a free surface, chunks of material can break away and fly off at high speeds. If there are any defects on the surface, the shock forms microjets that travel faster than ...
General Physics
Dec 09, 2020
1
19
More than 40 years since they launched, the Voyager spacecraft are still making discoveries.
Astronomy
Dec 03, 2020
2
478
Applying shockwaves can improve conditions for fluid mixing in supersonic combustion engines, paving the way for flights at speeds five times faster than the speed of sound.
General Physics
Jul 31, 2020
16
1480
In a paper published in the Astrophysical Journal, a team led by researchers at École Polytechnique have paved the way to unraveling the mystery as to why many supernova remnants that we observe from Earth are axisymmetric ...
Astronomy
Jul 08, 2020
17
435
Which way the wind blows in space has new importance for astronaut safety at the moon. Using data from several NASA missions, scientists discovered that wind created by high-speed particles from the sun can cause the tail ...
Space Exploration
Jun 30, 2020
2
136
When a material is subjected to an extreme load in the form of a shock or blast wave, damage often forms internally through a process called spall fracture.
General Physics
Jun 23, 2020
0
11
There are giants among us—gas and ice giants to be specific. They orbit the same star, but their environmental conditions and chemical makeup are wildly different from those of Earth. These enormous planets—Jupiter, Saturn, ...
General Physics
Jun 17, 2020
0
44
An international team of astronomers has created the most detailed map yet of the atmosphere of the red supergiant star Antares. The unprecedented sensitivity and resolution of both the Atacama Large Millimeter/submillimeter ...
Astronomy
Jun 16, 2020
0
269
When stars explode as supernovas, they produce shock waves in the plasma surrounding them. So powerful are these shock waves, they can act as particle accelerators that blast streams of particles, called cosmic rays, out ...
General Physics
Jun 08, 2020
3
683
As the Earth orbits the sun, it plows through a stream of fast-moving particles that can interfere with satellites and global positioning systems. Now, a team of scientists at the U.S. Department of Energy's (DOE) Princeton ...
Plasma Physics
Jun 03, 2020
0
135
