We're often told to limit our "screen time," thanks in part to the harsh blue light that screens can emit. Plants can detect blue light too, but instead of causing sleepless nights for our green friends, it could help make ...
Plants & Animals
Dec 20, 2022
0
61
Since time immemorial, Indigenous peoples worldwide have observed, tracked and memorized all the visible objects in the night sky.
Astronomy
Apr 25, 2022
4
8
3D holograms, previously seen only in science fiction movies, may soon make their way to consumer technology. Until now, 3D holograms based on phase shifting holography method could be captured using a large, specialized ...
Nanophysics
Jan 5, 2022
0
216
I'm outside at my rural Saskatchewan farm, chatting with my neighbors who I've invited over to appreciate the night sky through my telescope. After exclamations and open-mouthed wonder over Saturn's rings, and light that ...
Space Exploration
Dec 1, 2021
0
308
Cell phones, cars and many other devices have separate cameras and sensors for day and night vision, but that need could go away thanks to University of Dayton researchers who developed a single device that can switch between ...
Optics & Photonics
Nov 16, 2021
0
77
Most animals sync their body clocks to the daily rhythm of the sun, but what happens during the polar winter when the sun never rises above the horizon? According to a study by Jonathan Cohen at the University of Delaware ...
Plants & Animals
Oct 19, 2021
0
120
For decades, the stars in our night sky have been blotted out by artificial light—from streetlamps, residential houses, businesses, construction sites, vehicles, billboards and so on. The glow they emit misdirects light ...
Astronomy
Sep 28, 2021
0
312
"The best laid plans of mice and men often go awry"—this famous paraphrase of Scottish poet Robert Burns sometimes sums up human ingenuity. That is exactly what happened when a county in Washington State decided to replace ...
Environment
Jul 9, 2021
9
27
A string of lights that lobbed across the night sky in parts of the U.S. on Wednesday, Thursday and Friday had some people wondering if a fleet of UFOs was coming, but it had others— mostly amateur stargazers and professional ...
Space Exploration
May 9, 2021
12
1298
An initially promising U.S. forecast for the northern lights has gone bust.
Environment
Dec 10, 2020
0
16
