Radio telescopes let you study the universe by collecting faint radio waves from distant objects. To see extremely small ...

Something’s fishy in the southern constellation Phoenix. Strange radio emissions from a distant galaxy cluster take the shape of a gigantic jellyfish, complete with head and tentacles. Moreover, the ...

The waves' origin is unknown, so they hint at the existence of a new type of celestial object. The signal doesn't look like the kind that comes from stars, planets, or even dead stars. Mysterious ...

When it comes to electromagnetic waves, humans can really only directly perceive a very small part of the overall spectrum, which we call “visible light.” [rootkid] recently built an ...

Our SoundClips series continues with listener Jim Hetrick of Stockton, Calif. He shares recordings he made in 1982 at the South Pole, where he captured low-frequency radio waves created by lightning ...