What if the Universe has just revealed one of its deepest secrets? 💥
In less than three months since its launch, Einstein Probe has made a discovery that could change our understanding of the most powerful explosions in the cosmos. On 15 March 2024, its Wide-field X-ray Telescope detected a mysterious burst of X-rays—an event that could rewrite our knowledge of gamma-ray bursts (GRBs), the most powerful explosions in the Universe.
This event, named EP240315a, lasted over 17 minutes, fluctuating in brightness before fading away. What makes it even more extraordinary is its origin: 12.5 billion light-years away! The light from this ancient explosion began its journey to Earth when the Universe was just 10% of its current age.
Follow-up observations from telescopes in South Africa, Hawaii, and Chile confirmed its immense distance and linked it to a GRB known as GRB 240315C. But there’s a twist—this X-ray burst arrived 372 seconds before the gamma rays. Such a long delay has never been...