Linked by entanglement, small telescopes may see like one colossal mirror

Scientists have developed a revolutionary approach to telescope technology that uses quantum entanglement instead of physically combining light from distant telescopes. Currently, astronomers link separate telescopes to create the effect of one giant mirror, but this requires transporting fragile light across long distances, causing information loss. The new quantum method allows telescopes to share data through entangled quantum memories and classical communication, potentially achieving sharper images than current systems while avoiding the problems of light transportation across vulnerable links.