Firefly’s Blue Ghost — named after a species of U.S. Southeastern fireflies — should reach the moon first. The 6-foot-6-inches-tall (2-meter-tall) lander will attempt a touchdown in early March at ...

Narrator: So, a silicone polymer, the putty, carries an abrasive material, the silicon carbide particles. Let's make this simple and see how the process works on an intake manifold. The intake ...