New Quantum Stopwatch With Ultrafast “Time Lens” Can Improve Imaging Technologies

Why it might be impossible to build a practical quantum computer

ESA pursuing European space summit to discuss new flagship space programs. Options for flagship programs include quantum communications and support for Europe’s “Green Deal” effort to become carbon-neutral by 2050, and developing a human spaceflight capability Europe currently lacks.

Why is it so difficult to find a viable quantum theory of gravity?