Recent investigations have advanced the understanding of integral operators on non-homogeneous metric measure spaces. Notably, the study of rough singular integrals on Triebel–Lizorkin spaces ...

"This one reusable rocket booster alone launched to orbit 2 astronauts and more than 860 satellites — totaling 260+ metric tons — in ~3.5 years," SpaceX officials said in a Monday tweet.

NASA uses both English and metric aboard the International Space Station. The dual strategy led to the loss of the Mars Climate Orbiter robotic probe in 1999; ...

Every other country that operates in space uses metric. Their reply: Because we have always done it the other way. It’s what our readers understand. It’s the American Way.

China's abandoned space station Tiangong-1 is out of control, and it's going to crash to Earth very soon. But don't panic. A 9.4-ton (8.5 metric tons) mass of metal careening out of orbit toward ...