Page 90 - Alpha Centauri News Today

The Oort Cloud begins about 2,000 to 5,000 AU from the Sun and stretches to about 10,000 to 100,000 AU (0.16 to 1.6 light-years), according to NASA. But keep in mind this outer boundary is pretty nebulous, so there is no hard line where the Oort Cloud ends.

Propelling micrometre-sized drones using light only and exerting precise control: Physicists at the University of Würzburg have succeeded at this for the first time. Their microdrones are signific ...

Propelling micrometre-sized drones using light only and exerting precise control: Physicists at the University of Würzburg have succeeded at...

It's a longshot that the 1,000 Guineas trials in Britain unearthed a Classic winner but Homeless Songs looked absolutely top drawer when winning at

A hand-held laser pointer produces no noticeable recoil forces when it is "fired" - even though it emits a directed stream of light particles. The reason for this is its very large mass compared to the very small recoil impulses that the light particles cause when leaving the laser pointer.

For the first time, University of Würzburg physicists have been successful in propelling micrometer-sized drones using just light and exerting clear-cut control. These microdrones are considerably smaller in comparison to red blood cells.

Greetings everyone! The four visible planets are still forming that lovely diagonal line in the early morning sky.

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The author of "Station Eleven" and "The Glass Hotel" has said this story was inspired by one of her favorite novels, David Mitchell’s "Cloud Atlas,"

Solar sailing exists for real, and here is the proof.