Voyager 1, the spacecraft that launched on a tour of the solar on Sept. 5, 1977, is getting ready to enter interplanetary space.
The spacecraft’s journey started in 1966 when Gary Flandro, then a graduate student working at NASA’s Jet Propulsion Laboratory, discovered that the planets were about to align. Not just for him, but for the whole solar system.
Image: Artist’s rendering of Voyager 2 in the outer regions of the heliosphere, the magnetic bubble around the solar system generated by the solar wind. Credit: NASA