On bonfire day this year, 41 years (roughly) after being launched, a man-made spacecraft travelling at 34,000 mph left the heliopause, the horizon of the Sun's magnetic field.
Voyager 2 is now 11 billion miles from where it was conceived of, made and launched and continues to send information home to us.
Along with Voyager 1, which is slightly ahead of it but can't communicate with us any more, it will orbit the centre of our galaxy for billions of years.
Despite travelling at 34,000mph (around 9.5 miles a second), it won't come near another star for 40,000 years.
Beautiful.