The Long March 5B, a 22-ton Chinese rocket, is falling back to Earth this weekend. Where will it land? - Grid

Experts predict that 20 percent to 40 percent of the Chinese rocket body’s immense mass will survive its fiery journey through Earth’s atmosphere to the planet’s surface, but not in one piece.

When youre asked, Whats up? this weekend, heres your answer: the Long March 5B, a roughly 44,000-pound rocket body thats spiraling toward Earth. But scientists are unsure when and where this debris … [+5614 chars]

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