英语听力精选进阶版 14280（在线收听）

Voyager 1 leaves the Solar System

Vocabulary

launched

(here) sent a spacecraft into space

particles

very small pieces of dust

hurled

threw with a lot of force

matter

physical substance/small pieces of dust and rock

circumnavigating

travelling completely around (something)

ventures

goes on a risky or daring journey

fall silent

stop transmitting

extraterrestrial beings

living things from other planets