76K views · 332 reactions | Earlier today at SpaceX McGregor, we spotted what appeared to be an explosion from a test component site. A few moments later, a Raptor engine fired up on the test stand down the road! Just another day at McGregor! (Note: Perspective is hard, they look like they are right next to each other but are a couple miles apart!) Follow along yourself using our 24/7 livestream, McGregor Live, linked in the comments below.  | NASASpaceflight.com | Facebook