The SPHERE planet-hunting instrument on the European Southern Observatory's Very Large Telescope captured this image of a white dwarf feeding on its companion star, a type of Red Giant called a Mira variable. Most stars exist ...
Astronomy
Dec 14, 2018
10
8
One-fifth of global electricity consumption is based on lighting; efficient and stable white-light emission with single materials is ideal for applications. Photon emission that covers the entire visible spectrum is, however, ...
Millions of birds die each year in collisions with planes, and airports have used everything from fireworks to herding dogs to scare them away. Some methods have been relatively successful, but they're useless after the plane ...
Ecology
Sep 26, 2018
0
7
Researchers have demonstrated nanomaterial-based white-light-emitting diodes (LEDs) that exhibit a record luminous efficiency of 105 lumens per watt. Luminous efficiency is a measure of how well a light source uses power ...
Nanophysics
Jul 12, 2018
1
1014
You could call it fatal attraction. Drawn by artificial lights in our brightening night-time world, animals find their lives in peril.
Ecology
Mar 27, 2018
0
180
A team led by engineers at the University of California San Diego has used data mining and computational tools to discover a new phosphor material for white LEDs that is inexpensive and easy to make. Researchers built prototype ...
Optics & Photonics
Feb 19, 2018
5
977
A dangerous fungus has been sweeping across North America with devastating consequences. In the past decade, between 5m and 7m bats in the US and Canada have been wiped out as a result of the fungal disease known as white ...
Plants & Animals
Feb 15, 2018
0
47
Scientists from ITMO University have used a silicon-gold nanoparticle agitated by a pulse laser in IR band as an effective source of white light. One such "nanobulb" was integrated into a standard probe microscope, which ...
Nanophysics
Jan 26, 2018
0
13
The fungus behind white-nose syndrome, a disease that has ravaged bat populations in North America, may have an Achilles' heel: UV light. White-nose syndrome has spread steadily for the past decade and is caused by the fungus ...
Plants & Animals
Jan 2, 2018
2
6008
While total solar eclipses happen about once every 18 months somewhere on Earth, the Aug. 21, 2017, eclipse was rare in its long path over land. The total eclipse lasted about 90 minutes, from the time it first reached the ...
Space Exploration
Dec 12, 2017
0
3
