It was twenty-seven years ago today:
From Today in History
In 1977, the U.S. launched the Voyager 1 spacecraft two weeks after launching its twin, Voyager 2.
Still going strong, according to JPL/NASA
. We read
At the outer limits of our solar system, a solar shock wave is about to overtake NASA's Voyager 1 spacecraft.
July 13, 2004: When Voyager 1 signals NASA, which it does almost every day, there's usually not much to report. The spacecraft is nearly 9 billion miles (14.5 billion km) from the sun, at the edge of our solar system. It's quiet out there, dark and uneventful.
Voyager 1, prepare for action.
A solar blast wave is heading for the spacecraft, and "it could arrive at any moment," says Ed Stone, project scientist for the Voyager mission at the Jet Propulsion Laboratory.