Science Roundup

Compiled by Carl Slaughter: (1) Black hole pairs: “Scientist Find Treasure Trove of Giant Black Hole Pairs”.

For decades, astronomers have known that Supermassive Black Holes (SMBHs) reside at the center of most massive galaxies. These black holes, which range from being hundreds of thousands to billions of Solar masses, exert a powerful influence on surrounding matter and are believed to be the cause of Active Galactic Nuclei (AGN). For as long as astronomers have known about them, they have sought to understand how SMBHs form and evolve.

In two recently published studies, two international teams of researchers report on the discovery of five newly-discovered black hole pairs at the centers of distant galaxies. This discovery could help astronomers shed new light on how SMBHs form and grow over time, not to mention how black hole mergers produce the strongest gravitational waves in the Universe.

(2) It’s for you: “Scientists made the first ‘unhackable’ quantum video call”.

Traditional methods of digital communication rely on certain mathematical functions, which can be hacked with the right tools and know-how. Quantum communications, however, send information embedded in entangled particles of light, in this instance by a satellite named Micius, in a process which is said to be completely unhackable. It’s so secure that anyone even attempting to infiltrate the communication without authorization will be uncovered. As Johannes Handsteiner from the Austrian Academy of Sciences explained, “If somebody attempts to intercept the photons exchanged between the satellite and the ground station and to measure their polarization, the quantum state of the photons will be changed by this measurement attempt, immediately exposing the hackers.”

(3) NASA / Russia moon station: “NASA and Russia agree to work together on Moon space station”.

This is part of NASA’s expressed desire to explore and develop its so-called “deep space gateway” concept, which it intends to be a strategic base from which to expand the range and capabilities of human space exploration. NASA wants to get humans out into space beyond the Moon, in other words, and the gateway concept would establish an orbital space station in the vicinity of the Moon to help make this a more practical possibility.

(4) I like ?. Pi, the Golden Number, impossible engineering, and the Egyptian pyramids..

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