A solar-powered rocket might be our ticket to interstellar space

Click Here to Read: A solar-powered rocket might be our ticket to interstellar space: Researchers tapped by NASA just conducted a first test of a decades-old concept by Daniel Oberhaus on the ars technica website on November 21, 2020.

A concept image of a spacecraft powered by a fusion-driven rocket. In this image, the crew would be in the forward-most chamber. Solar panels on the sides would collect energy to initiate the process that creates fusion. Image: Pancotti  Public Domain via Wikimedia Commons.

What Is a Particle?

Click Here to Read: What Is a Particle?: It has been thought of as many things: a pointlike object, an excitation of a field, a speck of pure math that has cut into reality. But never has physicists’ conception of a particle changed more than it is changing now by Natalie Wolchover on the Quantum Magazine website on November 12, 2020.
Quantum particle interference Image: Thierry Dugnolle  Public domain via Wikimedia Commons.