By doping alumina crystals with neodymium ions, engineers at the University of California San Diego have developed a new laser material that is capable of emitting ultra-short, high-power pulses—a combination that could ...
Materials Science
Jul 18, 2018
1
170
A meteoroid exploded over the city of Lipetsk in western Russia last week without warning, lighting up the summer sky with a bright flash. While some enjoyed the light show, others are worried that we didn't see it coming.
Space Exploration
Jun 29, 2018
0
22
Aviation's frontier is supersonic. The military is seeking ever-faster aircraft, planes that can fly five times the speed of sound. Fifteen years after the Concorde's last transatlantic flight, Japan Airlines and the Virgin ...
Engineering
Jun 25, 2018
0
11
What happens when the solar wind suddenly starts to blow significantly harder? According to two recent studies, the boundaries of our entire solar system balloon outward—and an analysis of particles rebounding off of its ...
Space Exploration
Jun 6, 2018
0
219
As Earth orbits the sun at supersonic speed, it cuts a path through the solar wind. This fast stream of charged particles, or plasma, launched from the sun's outer layers would bombard Earth's atmosphere if not for the protection ...
General Physics
May 31, 2018
166
423
Scientists at two major national laboratories have demonstrated a new method for testing explosives stored in weapons stockpiles, a step they say will help reduce accidental detonation and ensure the weapons perform as expected.
Other
May 1, 2018
0
3
The more solar observatories, the merrier: Scientists have developed new models to see how shocks associated with coronal mass ejections, or CMEs, propagate from the Sun—an effort made possible only by combining data from ...
Space Exploration
Mar 9, 2018
1
219
Adaptive snowboarder Mike Schultz could very well have the winning formula at the Paralympics—whether or not he even crosses the finish line in first.
Engineering
Mar 8, 2018
0
10
Imagine an object moving at super-sonic speed. This object, as it moves through a medium, causes the material in the medium to pile up, compress, and heat up. The result is a type of shock wave, known as a bow shock.
Space Exploration
Mar 7, 2018
0
23
Scientists at Queen's University Belfast have led an international team to the ground-breaking discovery that magnetic waves crashing through the sun may be key to heating its atmosphere and propelling the solar wind.
General Physics
Mar 6, 2018
12
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