
In a project funded by the European Space Agency ESA and the Austrian Space Agency FFG, Austrian physicists succeeded in transmitting a pair of entangled photons from La Palma over a distance of 144 km to Tenerife,
A team from Austria's Institute for Quantum Optics and Quantum Information (IQOQI) managed to send entangled photons 144 kilometres (90 miles) between the Spanish islands of Las Palmas and the Balearics.
Because of the success of the test, the IQOQI team said it was now feasible to send this kind of unbreakable encrypted communication through space using satellites.
Quantum cryptography works by sending streams of light particles, or photons, making it entirely secure, as any eavesdropping would leave traces and immediately be detected.