Scientists are not sure how much metallic dust remained in the atmosphere after the most recent SpaceX rocket 'disassembly.' ...

The 3B is one of China's older workhorse rockets; it uses a toxic hypergolic propellant mix of hydrazine and nitrogen ...

They also did the math to show that the warming of liquid nitrogen below Titan's surface could create explosions big enough to form the lakes we see today. Other than Earth, Titan is the only ...