Explanation:

China has successfully launched the world’s first quantum satellite dubbed as Quantum Experiments at Space Scaler (QUESS) satellite.
? The satellite was launched on board of Long March-2D rocket from the Jiuquan Satellite Launch Centre in the remote northwestern province of Gansu.
About Quantum Experiments at Space Scaler (QUESS) satellite
? In its two-year mission, QUESS is designed to establish 'hack-proof' quantum communications by transmitting uncrackable keys from space to the ground, and provide insights into the strangest phenomenon in quantum physics — quantum entanglement
? "Entangled" particles are intimately and curiously linked to each other; even if they're separated by billions of miles of space; a change in one somehow affects the others.
? QUESS will send messages to ground stations using entangled photons Such a system is theoretically impossible to hack. In addition, any attempts to eavesdrop would be picked up via an induced change in the photons' state.
? The 1,320-lb. (600 kilograms) QUESS satellite is designed to circle Earth at an altitude of about 310 miles (500 kilometers), completing one lap every 90 minutes, Xinhua reported.
? QUESS will also test out "quantum teleportation," beaming precise information about the states of particles from the satellite to a ground station in Tibet, according to the news agency.
? The satellite is nicknamed "Micius," after a Chinese scientist who conducted groundbreaking optical experiments in the 5th century B.C