Space Race 2.0: A Shoebox‑Sized Quantum Satellite Blasts Off—Can It Make Hackers Obsolete?
QUICK³ is a 3U CubeSat weighing 4 kg, led by Germany’s Technical University of Munich, and it launched on 23 June 2025 aboard SpaceX’s Transporter‑14 from Vandenberg SFB. It carries the first true single-photon source flown, a laser-pumped hexagonal boron nitride chip on a 10 × 10 × 15 cm photonic chip. True single photons are expected to raise secret-key rates 10–100× over weak-laser systems. The pump laser is a 698 nm diode module, 45 × 80 × 20 mm, weighing 200 g. QUICK³ uses a 3U CubeSat bus with a 4 kg mass budget and rideshare compatibility, with launch