Haynes said it is the lowest-frequency, highest-power transmitter available for JPL and NASA to use. In the experiment, HAARP “chirps” about every 2 seconds, sending radio waves up to the ...

Journal Reference: Moore, C.J., Vecchio, A. Ultra-low-frequency gravitational waves from cosmological and astrophysical processes. Nat Astron, 2021 DOI: 10.1038/s41550-021-01489-8 ...

Ultra-low frequency waves such as those caused by supermassive black holes have long wavelengths and extremely weak frequencies, making them hard to detect.

The source of these low-frequency gravitational waves is believed to be supermassive black hole binaries in the very early universe. Think of this in terms of an orchestra.

A Chinese team has found key evidence of low-frequency gravitational waves, which are ripples of space-time that could provide clues to some of our universe’s darkest secrets. Using the Five ...

Ultra-low frequency gravitational waves that could reveal secrets about the formation of the universe have been observed for the first time. Astronomers saw them after 25 years of observation ...