Is the Universe Old or Young?

Question submitted by FRANCESC AGUILAR I DOMENJÓ (Grau de Castelló). MANEL PERUCHO answers: The latest Background Microwave Radiation observations and type Ia cosmological supernovae indicate that the Universe has a flat geometry and its expansion is accelerating. This fact, which seems unrelated to the question, is

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The Cosmos Soundtrack

Foto: Arthur CaravanFragment of the cover of Atles enharmònic (self-produced, 2011), Arthur Caravan's album that includes a song inspired by Pythagoras. Music has accompanied humanity throughout history, however, it is not exclusive to humans. We know it exists in the animal

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Music to share with the stars

You probably remember Steven Spielberg's 1977 film Close Encounters of the Third Kind in which, in a memorable final scene, humans communicate with aliens with music, specially with that well known "D E C C G" melody that would be later hummed by everyone.

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