But the situation in Earth orbit reminds him of the ecological woes underway here on our home planet. “The analogy that I like to think about space debris is plastic in the oceans,” he said.

Earth's orbit is so crowded with junk now that ... crowded that there's no safe space for new rocket launches. That's a situation experts call Kessler syndrome, and "that we hope to prevent ...

Russia has said it is closely watching the situation with Greenland ... That's for the free world. I'm talking about protecting the free world," Trump said. "You have Chinese ships all over ...