Galaxies are not static islands of stars—they are dynamic and ever-changing, constantly on the move through the darkness of the Universe. Sometimes, as seen in this spectacular Hubble image of Arp 256, galaxies can collide ...
Astronomy
Mar 8, 2018
0
222
A record-setting Russian spacewalk ended with a critical antenna in the wrong position Friday outside the International Space Station.
Space Exploration
Feb 3, 2018
31
632
Atoms and molecules can be made to emit photons. However, without external intervention, this process is inefficient and undirected. If it was possible to influence the process of photon creation in terms of efficiency and ...
Optics & Photonics
Dec 12, 2017
0
81
Multiband tunable antennas are a critical part of many communication and radar systems. New research by engineers at the University of Bristol has shown significant advances in antennas by using optically induced plasmas ...
Engineering
Nov 16, 2017
0
273
Fibers made of carbon nanotubes configured as wireless antennas can be as good as copper antennas but 20 times lighter, according to Rice University researchers. The antennas may offer practical advantages for aerospace applications ...
Nanomaterials
Oct 23, 2017
0
24
Almost 150 years after Charles Darwin first proposed a little-known prediction from his theory of sexual selection, researchers have found that male moths with larger antennae are better at detecting female signals.
Plants & Animals
May 26, 2017
1
251
Collisions between galaxies, especially ones rich in molecular gas, can trigger bursts of star formation that heat the dust and result in their shining brightly in the infrared. Astronomers think that there is also significant ...
Astronomy
May 1, 2017
10
34
Using a tiny device known as an optical antenna, researchers have created an X-ray sensor that is integrated onto the end of an optical fiber just a few tens of microns in diameter. By detecting X-rays at an extremely small ...
Optics & Photonics
Mar 28, 2017
0
307
Black magic. That's what radiofrequency engineers call the mysterious forces guiding communications over the air. These forces involve complex physics and are difficult enough to master on Earth. They only get more baffling ...
Space Exploration
Nov 8, 2016
4
16
Walk through any woods, branches swaying overhead, and you're surrounded by billions of the world's most efficient systems for collecting energy. Inside every leaf, blade of grass, and algal cell, clusters of proteins and ...
Biotechnology
Nov 4, 2016
0
65
