Airplanes use radio waves to determine how far off the ground they are. New 5G cellphone services come close to the same frequencies the airplanes use. Here’s how that can be a problem.
Despite the name, some black holes effectively “shine” as they suck up nearby material with such force that it begins to glow. New research reveals a new method for detecting these active black holes.
The Wi-Fi symbol, like the technology it represents, has become ubiquitous.
Smith Collection/Gado via Getty Images
Wi-Fi has become a fundamental part of modern digital life, but its foundation is the same as the technology that allowed your great-grandparents to listen to their favorite radio programs.
As if attacks on health workers weren’t upsetting enough, reports indicate broadband engineers are now also being abused - as conspiracy theorists link 5G technology with to COVID-19’s spread.
NASA’s Worldview software gives you a satellite view of Earth right now, and can help track the spread of fires.
Nasa Worldview
By understanding how bushfire maps are created, and what their features represent, you can get better at spotting fake ones.
The electromagnetic spectrum we can access with current technologies is completely occupied. This means experts have to think of creative ways to meet our rocketing demands for data.
NASA Johnson/Flickr
Free space optical communication will allow the same connectivity in space we already have on Earth. And this will provide benefits across a number of sectors.
Light can be used as a high-speed form of wireless communication.
Shutterstock/ra2studio
We live in a world of wireless communication, but there are limits to what existing technologies can offer. The search is on for any new method of wireless connectivity.
The Small Magellanic Cloud galaxy here seen in infrared light, but it looks different when viewed at other wavelengths.
ESA/NASA/JPL-Caltech/STScI
The galaxies, stars and planets in our universe can look very different when you view them through equipment that sees beyond the visible light our eyes can see.
Illustration of hot, dense, expanding cloud of debris stripped from the neutron stars just before they collided.
NASA's Goddard Space Flight Center/CI Lab
Until the recent observation of merging neutron stars, how the heaviest elements come to be was a mystery. But their fingerprints are all over this cosmic collision.
Professor of Electrical and Electronic Engineering and Deputy Dean Research at Faculty of Engineering and Information Technology, The University of Melbourne