For those of you who somehow haven't heard the news, a man made space craft has landed on a comet for the first time. Hello 67P/Churyumov-Gerasimenko!
The Rosetta mission has been in the works for a long time. This mission was approved in 1993, and the craft itself was launched in 2004. You can see a timeline of the mission HERE. This is an amazing moment, not only for the ESA, but for humanity as a whole. Let's celebrate!
You can also hear the comet "sing" to you! Apparently the sound is caused by weak oscillations in 67P's magnetic field. You can find a more in-depth explanation for this HERE. Keep in mind, we wouldn't normally be able to hear these sounds. The frequency has been increased by a fair bit (about 10,000 times) to make your enjoyment possible.
A big congratulations and thank you to all the scientists who made this achievement possible!