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Jet Propulsion Laboratory
Video chat: Welcome to Ceres! Dawn enters dwarf planet's orbit
Video chat: Welcome to Ceres! Dawn enters dwarf planet's orbit

Scientists at the Jet Propulsion Laboratory are celebrating after NASA’s Dawn spacecraft entered orbit around Ceres early Friday morning, marking the first visit to a dwarf planet. Launched in September 2007, Dawn traveled 3.1 billion miles over more than seven years to finally arrive at what officials called the largest unexplored world in the inner solar system. The spacecraft entered orbit around 4:39 a.m. Friday, coming in at an altitude of around 38,000 miles. A confirmation signal came back about 5:36 a.m. Although the automated entry didn’t require a full control room at the Jet Propulsion Laboratory, the excitement caused mission team members to wax...

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