In science fiction stories about contact with extraterrestrial civilisations, there is a problem: What kind of propulsion system could make it possible to bridge the enormous distances between the stars? It cannot be done ...
Space Exploration
Dec 20, 2021
20
859
By confirming certain light-scattering dynamics first proposed a half-century ago, University of Nebraska–Lincoln physicists are casting fresh eyes on the universe-birthing fireworks ignited by the Big Bang nearly 14 billion ...
General Physics
Dec 20, 2021
5
103
It doesn't take a rocket scientist to know space is weird. But just how weird might surprise you. Space is dominated by invisible electromagnetic forces that we typically don't feel. It's also full of bizarre types of matter ...
Space Exploration
Dec 13, 2021
1
74
Light is an electromagnetic wave: It consists of oscillating electric and magnetic fields propagating through space. Every wave is characterized by its frequency, which refers to the number of oscillations per second, measured ...
Optics & Photonics
Dec 2, 2021
4
3653
The dusty surface of the moon—immortalized in images of Apollo astronauts' lunar footprints—formed as the result of asteroid impacts and the harsh environment of space breaking down rock over millions of years. An ancient ...
Planetary Sciences
Dec 1, 2021
0
356
Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology.
General Physics
Nov 10, 2021
1
1469
The interaction of dust particles in Martian dust storms may cause electric fields that are powerful enough to have charges that induce standing electromagnetic waves known as Sсhumann resonances. This is the conclusion ...
Astronomy
Nov 3, 2021
0
87
The captured electrons typically absorb light in the visible spectrum, so that a transparent material becomes colored under the presence of such centers, for instance in diamond. "Color centers are often coming along with ...
Quantum Physics
Nov 1, 2021
0
530
A "massive" black hole (MBH) is one whose mass is more than about one hundred thousand solar-masses. MBHs reside at the centers of most galaxies, and when they actively accrete gas and dust onto their surrounding hot disk ...
Astronomy
Oct 22, 2021
0
337
Topology in optics and photonics has been a hot topic since 1890 where singularities in electromagnetic fields have been considered. The recent award of the Nobel prize for topology developments in condensed matter physics ...
Quantum Physics
Oct 22, 2021
1
537
