Billionaire private astronaut Jared Isaacman didn't mince words Wednesday (Dec. 3) during his second hearing before the Senate committee considering his nomination for NASA administrator.
Whenever a new telescope is about to begin observations, scientists say they're looking forward to finding answers to some outstanding questions. After all, each new telescope is deliberately designed to address some of these questions. But they also remark that new telescopes inevitably reveal new surprises, and how excited they are to confront those surprises. When it comes to the JWST, both of these expectations have come true.

