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SpaceX rocket launches 88 spacecraft, then aces landing

SpaceX’s Falcon 9 rocket sent dozens of satellites into orbit today with a launch that featured an unusual on-the-ground touchdown for its first-stage booster.

Eighty-eight spacecraft were packed aboard the rocket, which took off from Cape Canaveral Space Force Station in Florida heading for a pole-to-pole orbit. That sun-synchronous orbit is typically preferred for Earth observation satellites, of which there were plenty.

Two of the spacecraft were Sherpa orbital transfer vehicles built by Seattle-based Spaceflight Inc. One of the Sherpas used a electric propulsion system to maneuver in space and deploy satellites into different orbits. The other was a free-flier.

By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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