The European Space Agency’s (ESA) newest planetary defender has opened its ‘eye’ to the cosmos for the first time. The Flyeye telescope’s ‘first light’ marks the beginning of a new chapter in how we scan the skies for new near-Earth asteroids and comets.
The Hubble Tension is perhaps, one of the most frustratingly unresolved mysteries in cosmology. Here's the problem: when astronomers measure how fast the universe is expanding today using nearby stars, they get one answer. When it's calculated from the afterglow of the Big Bang—the cosmic microwave background—there is a completely different number. The gap between these measurements has persisted for over a decade, surviving countless attempts to explain it away as experimental error. Either the instruments are systematically wrong, or something fundamental about the universe's evolution is missing from our models.
