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Webb space telescope’s launch makes Christmas merry

The most expensive telescope in the known universe has begun its journey to a vantage point a million miles from Earth with its launch from French Guiana.

Today’s liftoff of an Ariane 5 rocket from the European Space Agency’s South American spaceport, coming at 9:20 a.m. local time (4:20 a.m. PT), was just the first step of what’s expected to be a monthlong trip for NASA’s $10 billion James Webb Space Telescope.

“Everything fell together on this Christmas Day to send a new present to the world’s astronomers,” NASA launch commentator Rob Navias said.

Flight controllers broke into applause when the telescope separated from the Ariane 5’s second stage. “Go Webb!” range operations manager Jean-Luc Voyer cried.

NASA Administrator Bill Nelson noted that the James Webb Space Telescope is designed to look back to an age when the first stars and galaxies formed, more than 13.5 billion years ago.

“It’s a time machine,” Nelson said. “It’s going to take us back to the very beginnings of the universe. We are going to discover incredible things that we never imagined.”

JWST is due to settle into a region of space known as the Sun-Earth Lagrange Point 2, or L2, where the gravitational pulls of Earth and the sun align to help keep spacecraft in a stable position within Earth’s shadow. Along the way, the telescope will have to unfurl its sunshield and its segmented mirror in a process that’s said to have 344 potential single points of failure.

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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