In this week's Q&A, I try to imagine what might happen if a microscopic black hole passed through the Earth. How long will James Webb take to become operational, and what will be the Plan B for James Webb if it fails? 00:00 Start00:46 What if a microscopic black hole passed through the Earth? 05:25 When will James Webb come online? 06:38 What's plan B for James Webb if it fails?