The Hills are Alive with the Sound of...

...Gravitational waves?!

Yes, you read that right. The universe is alive - or should be - with the sound of gravitational waves.

I'm very late to the party, but the LIGO Scientific Collaboration have released a video of the "chirp" black holes make as they spiral in towards each other and merge. A low rumbling quickens and quickens until it becomes a high whoop, the sound of two black holes crashing into each other (this crashing is technically known as a merger). For a brief moment the black holes are bright enough to outshine all the stars in the universe.

It's a beautiful moment. It's beautiful to be living in an age where we can hear these things. It's beautiful to be able to detect these events within months of each other.

The universe is alive with sound and light in ways we are privileged to see today.