Voyager 2 reveals the dynamic, complex nature of the solar system’s edge

Data from two NASA spacecraft chart the boundary between the sun and the rest of the galaxy

Voyager 1 and 2

Two spacecraft, Voyager 1 and 2 (illustrated), now sail through interstellar space, providing independent reports about how the sun interacts with the rest of the galaxy.

JPL-Caltech/NASA

Humanity’s second ambassador to interstellar space has reported back from the frontiers of the solar system — with the message that the border of the sun’s territory is a complex and ever-changing place.