Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves. The radio-frequency spectrum is ...
Behavior of radio waves in space to be studied in Canada/NASA experimentGerald Green
These sunspot radio bursts also have other characteristics – such as their spectra (or intensity at different wavelengths) and their polarization (the angle or direction of the radio waves) – that are much more like radio emissions produced in the polar regions of Earth and other planets with ...
Even though such waves are sent through the ocean, they spread outwards to the extent that the entire Earth has been covered in a VLF bubble. NASA's Van Allen Probes—meant to study the radiation belts that conspiracy theorists use to suggest mankind never visited the Moon—started to notice...
it intercepts radio waves, which create a feeble current in it. The current is then amplified in a radio receiver until it is strong enough to measure or record. Like your television or radio, receivers can be tuned to select a single frequency (channel). In astronomy, however, it is mor...
It has been long known that low-frequency radio waves in space, known as plasmaspheric hiss, split the Van Allen radiation belts into two donuts of dangerous energetic electrons that travel at nearly the speed of light and are trapped in Earth's magnetic field. Last year, NASA scientists rep...
Radio waves control everything from AM/FM broadcasts to wireless networks to garage door openers. William Taufic/Getty Images Electromagnetic radio waves are one of the most significant discoveries for 20th and 21st century technology. You don't see them, but countless high frequency waves are ...
Earth's neighboring celestial body has the unique property of naturally shielding radio waves generated by chatter on Earth and around it. What some meeting organizer's see is need for a radio silence zone, dubbing it a shielded zone on the moon. ...
The top row shows the de-dispersed, frequency-integrated light curves as a function of time from the start of each observation, shown in the panel titles. The light curves have been normalized for readability; observational parameters, peak flux densities and fluences for these pulses are reporte...
Intense, millisecond-duration bursts of radio waves (named fast radio bursts) have been detected from beyond the Milky Way1. Their dispersion measures—which are greater than would be expected if they had propagated only through the interstellar medium of the Milky Way—indicate extragalactic origins...