Rolls-Royce is in early-stage talks with potential commercial customers for its planned micro nuclear reactor, a technology it hopes will also provide power for space missions.

A Reddit group tracking Elon Musk’s private jet has amassed more than 2 lakh followers. Musk has taken 10 flights in the last three days alone.

The stars were on full display, a striking occurrence for high noon on a sunny Saturday. There was no solar eclipse. In fact, ...