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NASA Is Ending Its Iconic Voyager Mission After 45 Years

The two Voyager spacecraft were launched, taking advantage of rare planetary alignment in the 1970s. The alignment of Jupiter, Saturn, Uranus, and Neptune, which happens every 176 years, reduced the travel time to Neptune to just 12 years from 30 years.

After completing their four-year planned mission, the two spacecraft kept going. Today, Voyager 1 and Voyager 2 are the farthest human-made objects in space. They are still functional, but their power levels are dropping at the rate of 4 watts per year.

NASA had turned off some instruments in the past to save power. And this year, the space agency plans to switch off two more crucial science instruments on board the Voyager spacecraft.

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