Infrared LEDs are useful for optical communications and covert illumination, and are commonly found in remote controls and security camera setups. They are generally small point sources, which limits their use if larger-area ...
Optics & Photonics
Dec 24, 2019
0
195
The discovery of terrestrial exoplanets, planets that orbit stars outside the solar system, has been one of the most significant developments in modern astronomy. Several exoplanets lie in the "habitable zones" of stars, ...
Astronomy
Dec 15, 2019
18
617
Close friendships improve the survival chances of rhesus macaques, new research shows.
Plants & Animals
Dec 10, 2019
0
176
Many organic molecules are chiral, which means that they are non-superimposable on their mirror image. Those mirror images are called enantiomers and can have different properties when interacting with other chiral entities, ...
Materials Science
Dec 6, 2019
0
36
Comets are known to have a temper. As they swoop in from the outer edges of our solar system, these icy bodies begin spewing gas and dust as they venture closer to the sun. Their luminous outbursts can result in spectacular ...
Astronomy
Oct 24, 2019
7
1182
Numerous studies show that children who had a rough start in life are more likely to have health problems later on.
Plants & Animals
Sep 24, 2019
0
245
Corn, soybean, and cotton farmers shudder at the thought of Palmer amaranth invading their fields. The aggressive cousin of waterhemp—itself a formidable adversary—grows extremely rapidly, produces hundreds of thousands ...
Plants & Animals
Sep 16, 2019
2
131
Thirty years ago, on Aug. 25, 1989, NASA's Voyager 2 spacecraft made a close flyby of Neptune, giving humanity its first close-up of our solar system's eighth planet. Marking the end of the Voyager mission's Grand Tour of ...
Space Exploration
Aug 23, 2019
0
1800
As part of preparations for the launch of ESA's Jupiter Icy Moons Explorer, its navigation camera has been given a unique test: imaging its destination from Earth.
Space Exploration
Aug 22, 2019
0
135
Spiders start out social but later turn aggressive after dispersing and becoming solitary, according to a study publishing July 2 in the open-access journal PLOS Biology by Raphael Jeanson of the National Centre for Scientific ...
Plants & Animals
Jul 2, 2019
0
0
