Voyager 1 is a space probe launched by NASA on September 5, 1977, as part of the Voyager program to study the outer Solar System and interstellar space beyond the Sun's heliosphere. As of November 4, 2021, Voyager 1 is believed to be more than 14.4 billion miles from Earth, NASA reports. Despite being having been in operation for 44 years plus, it still communicates with the Deep Space Network to receive routine commands and to transmit data. NASA's Voyager 1 spacecraft is currently over 14.1 billion miles from Earth. It's moving at a speed of approximately 38,000 miles per hour and not long ago passed through our solar system's boundary with interstellar space. However, it has remained operational long past expectations and continues to send information about its journeys back to Earth. Voyager 1, one of the oldest space probes and the most distant human-made object from Earth, is still doing science. But even as it drifts farther and farther from a dimming sun, it's still sending information back to Earth, as scientists recently reported in The Astrophysical Journal. Voyager 2 is a space probe launched by NASA on August 20, 1977, to study the outer planets and interstellar space beyond the Sun's heliosphere. On October 29, 2020, NASA re-established contact with its Voyager 2 spacecraft, launched from Earth in 1977. The craft is now traveling more than 11.6 billion miles (18.8 billion km) from Earth. The spacecraft executed the commands without issue, according to a NASA statement. Voyager 2 discovered 10 new moons, two new rings, and a strangely tilted magnetic field stronger than that of Saturn. A gravity assist at Uranus propelled the spacecraft toward its next destination, Neptune. Voyager 1 flew within 64,200 kilometers (40,000 miles) of the cloud tops, while Voyager 2 came within 41,000 kilometers (26,000 miles).

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