Dr Mar Fernández-Méndez is a marine researcher, with an MSc in Marine Microbiology and a PhD in Biological Oceanography. She is currently the lead of a Helmholtz Young Investigator Group at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research in Bremerhaven, Germany.

Bitcoin, the digital currency conceived in 2009 by the mysterious Satoshi Nakamoto, is a financial phenomenon. Despite the volatility of global markets, it has demonstrated remarkable resilience.