Something humans built is now flying where the Sun’s power finally gives out.

Voyager 1 has left the giant bubble our star blows around the solar system. It pushed through the heliosheath, slipped past the heliopause, and is now cruising through real interstellar space.

How far out is that? About 25.9 billion km from home.

No human-made object has ever been farther. And it was launched back in 1977.

Still going.