article_snippet.sent: ‘revolving at nine hundred miles an hour.
article_snippet.sent: Measured in nautical miles, this is true, but the current estimate near the equator is actually 1,040mph (1,670km/h).
article_snippet.sent: And revolving at nine hundred miles an hour .
article_snippet.sent: That's orbiting at nineteen miles a second, so it's reckoned .
article_snippet.sent: Are moving at a million miles a day .
article_snippet.sent: In an outer spiral arm, at forty thousand miles an hour .
article_snippet.sent: In all of the directions The universe itself can whizz .
article_snippet.sent: As fast as The universe itself can go, the speed of light, you know .
article_snippet.sent: Twelve million miles a minute
article_snippet.sent: and that's the fastest speed there is .