Physicists produce black hole plasma in the lab

(PhysOrg.com) -- Black holes are voracious: They devour large amounts of matter from gas clouds or stars in their neighbourhood. As the incoming "food" spirals faster and faster into the abyss, it becomes denser and denser, ...

Lasers could be used to make rain (w/ Video)

(PhysOrg.com) -- Optical physicists in Europe have shown that lasers can be used to create tiny water droplets when they are fired into the air. The idea could eventually develop into an alternative to cloud seeding as a ...

Scientists produce densest artificial ionospheric plasma clouds

U.S. Naval Research Laboratory research physicists and engineers from the Plasma Physics Division, working at the High-frequency Active Auroral Research Program (HAARP) transmitter facility, Gakona, Alaska, successfully produced ...

The science behind northern lights

(Phys.org)—Northern night skies have recently been alive with light. Those shimmering curtains get their start about 93 million miles away, on the sun.

Ultracold gas mimics ultrahot plasma

Several years after Duke University researchers announced spectacular behavior of a low density ultracold gas cloud, researchers at Brookhaven National Laboratory have observed strikingly similar properties in a very hot ...

Apertif images yield first scientific results

Using Apertif (APERture Tile In Focus), searching at a radio frequency of 1.4 GHz, researchers have found an intra-hour variable (IHV) source, described in the paper "Extreme intra-hour variability of the radio source J1402+5347 ...

Metal cloud to protect fusion reactor walls

A thin vapour cloud in front of a liquid metal may be the solution to protecting the reactor walls of future fusion power plants to the extreme heat fluxes encountered. In Nature Communications, PhD candidate Stein van Eden ...

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