The New Yorkerのインスタグラム(newyorkermag) - 9月25日 22時10分

In the 14 billion years between the big bang and the autumn of 1957, space was pristine. Since then, humanity has placed nearly 10,000 satellites into the sky—and all but 2,700 are now defunct. Some have burned up, but thousands will stay in orbit for decades or centuries, careering around the planet as ballistic garbage, colliding with each other and dispersing more high-velocity debris. Eventually, some scientists say, the process could render all of near-Earth space unusable. At the link in our bio, read Raffi Katchadourian on the elusive danger of space junk, and the pioneering researchers who are scrambling for a solution. Illustration by @toddstjohn.

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