Enlarge / SpaceX’s Falcon 9 rocket soars through the sky over Cape Canaveral with Europe’s Euclid space telescope.Stephen Clark/Ars Technica
A European Space Agency telescope launched Saturday on top of a SpaceX Falcon 9 rocket from Florida to begin a $1.5 billion mission seeking to answer fundamental questions about the unseen forces driving the expansion of the Universe. The Euclid telescope, named for the ancient Greek mathematician, will observe billions of galaxies during its six-year survey of the sky, measuring their shapes and positions going back 10 billion years, more than 70 percent of cosmic history.
Led by the European
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