1 post tagged “earth”
I ran across an article full of niftiness today while surfing at work. You know, instead of working...
From Live Science and Space.com, apparently not only are people emitting waves of noise out into deep space that might some day attract the attention of some far-flung alien being, but the Earth itself is blasting out radio waves approximately 10,000 times greater than anything we measly inhabitants can manage. The radio waves are created by "charged particles from the solar wind collide with Earth's magnetic field." The sounds are not audible to Earthlings, even dogs, because they are blocked by Earth's ionosphere (the last layer of atmosphere around our planet).
Even more nift lies in the fact that any planet which produces an aurora also produces these sounds, so scientists can also add this to the arsenal of planet hunting techniques. Locally, it seems Jupiter and Saturn also produce these radio waves.
The Space.com link above has an audio clip of the sounds. Oddly, the link to listen says "Buy Now," but when you click the link it just plays, and no fee is required. The sound is eerie, but pretty cool.
