My thoughts are with the Virgin Galactic team. Spaceflight is difficult, dangerous, and I believe crucial to the future of humanity. Test piloting is always dangerous, more so with space vehicles, but that doesn't make it any less heartbreaking or impactful when you lose someone. I'm sure they will learn from this even as they mourn the loss.

Virgin Galactic, especially those you lost today, you have my deepest respect for Daring Greatly.