Australian quantum computing company Quantum Brilliance released a rack size quantum accelerator that operates at room temperature. The device uses synthetic diamonds as a stable environment for atom based qubits that can maintain coherence for milliseconds at a time. The company plans on miniaturising the accelerator to the size of a graphics card with ~50 qubits.
Quanta Magazine published a nice Quantum Computing expaliner video and article that gives a good overview of the fundametals of quantum computing, and why it is sometimes hard to describe when compared to classical computing.
Researchers have successfully demonstrated quantum entanglement on a cube satellite. A miniture device placed on the SpooQy-1 cubesat demostrated quantum entanglement between pairs of photons within the tiny 20cm x 10cm satellite. This work follows the Chinese Micius satellite which demostrated quantum teleportation over thousands of kilometers.
Physicists have discovered a scenario whereby they can detect an imminent quantum jump in state of a qubit. In the experiment, perfectly timed pulses of radiation can reverse the quantum jump when it is detected, keeping the quibit in its ground state.