On Tuesday, November 28, 2017, a set of thrusters aboard the Voyager 1 spacecraft successfully fired up for the first time since November 1980, after 37 years without use.
Voyager 1 is a space probe launched by NASA on September 5, 1977. Having operated for more than 40 years as of December 4, 2017, the spacecraft still communicates with the Deep Space Network to receive routine commands and return data. At a distance of 141 AU (see notes 1) (2.11×1010 km) or approximately 13 billion miles (21 billion km) from the Sun as of November 22, 2017, it is NASA’s farthest and fastest spacecraft. It is also the only human-made object in interstellar space, within the environment between the stars.