The Earth, solar system, the entire Milky Way and the few thousand galaxies closest to us move in a vast "bubble" that is 250 million light years in diameter, where the average density of matter is half as high as for the ...
Astronomy
Mar 10, 2020
80
11244
A team of physicists led by Professor Patrick Windpassinger at Johannes Gutenberg University Mainz (JGU) has successfully transported light stored in a quantum memory over a distance of 1.2 millimeters. They have demonstrated ...
Optics & Photonics
Oct 13, 2020
1
31723
(Phys.org)—In the non-intuitive quantum domain, the phenomenon of counterfactuality is defined as the transfer of a quantum state from one site to another without any quantum or classical particle transmitted between them. ...
SpaceX has drawn plenty of praise and criticism with the creation of Starlink, a constellation that will one day provide broadband internet access to the entire world. To date, the company has launched over 800 satellites ...
Space Exploration
Oct 26, 2020
19
306
More luminous and energy efficient than LEDs, white lasers look to be the future in lighting and light-based wireless communication.
Optics & Photonics
Jul 29, 2015
9
8615
Chemist John Dalton proposed the theory that all matter and objects are made up of particles called atoms, and this is still accepted by the scientific community, almost two centuries later. Each of these atoms is each made ...
Materials Science
Feb 16, 2017
0
130
University of Central Florida researchers have developed a new type of laser beam that doesn't follow long-held principles about how light refracts and travels.
Optics & Photonics
Aug 6, 2020
7
5456
Quick bursts of laser light, lasting less than a trillionth of a second, are used in a range of applications today. These ultrashort laser pulses have allowed scientists to observe chemical reactions in real-time, image delicate ...
Optics & Photonics
Nov 11, 2021
0
289
The rise of big data and advances in information technology has serious implications for our ability to deliver sufficient bandwidth to meet the growing demand.
Optics & Photonics
Jun 10, 2016
13
1316
Here's something we don't see very often: an Earth-grazing meteoroid.
Astronomy
Sep 29, 2020
2
1742
