NASA and HAARP conclude asteroid experiment
A powerful transmitter in remote Alaska sent long wavelength radio signals into space Tuesday with the purpose of bouncing them off an asteroid to learn about its interior.
A powerful transmitter in remote Alaska sent long wavelength radio signals into space Tuesday with the purpose of bouncing them off an asteroid to learn about its interior.
Planetary Sciences
Dec 30, 2022
0
119
An experiment to bounce a radio signal off an asteroid on Dec. 27 will serve as a test for probing a larger asteroid that in 2029 will pass closer to Earth than the many geostationary satellites that orbit our planet.
Planetary Sciences
Dec 22, 2022
1
33
Researchers at the University of Twente have developed a revolutionary programmable integrated microwave photonic filter with a record-breaking dynamic range. This represents a major breakthrough in the integration of functionality ...
Optics & Photonics
Dec 22, 2022
0
24
The onset of the South China Sea summer monsoon (SCSSM), usually characterized by a simultaneous circulation–convection transition, marks the beginning of the East Asian summer rainy season. Thus, forecasting it at the ...
Earth Sciences
Dec 14, 2022
0
4
Acoustic communication has played a key role in the evolution of animals—especially vertebrates and insects—ranging from mating to warning calls and even social learning. The reconstruction of ancient acoustic signals ...
Evolution
Dec 12, 2022
0
306
New research in Science shows how the rise of modern agriculture has turned a North American native plant, common waterhemp, into a problematic agricultural weed.
Ecology
Dec 8, 2022
0
190
Hovering over a target helps giant-faced Great Gray owls pinpoint prey hidden beneath as much as two feet of snow.
Plants & Animals
Dec 3, 2022
0
36
SpaceX on Wednesday postponed the launch of the world's first private lander to the Moon, a mission undertaken by Japanese firm ispace.
Space Exploration
Dec 1, 2022
1
34
SpaceX on Wednesday postponed by one day a mission to launch the first private—and Japanese—lander to the Moon.
Space Exploration
Nov 30, 2022
0
13
SpaceX is set Wednesday to launch the first private—and Japanese—lander to the Moon.
Space Exploration
Nov 29, 2022
0
163