LOS ANGELES, Jan. 11 (Xinhua) -- NASA launched a new satellite mission into low Earth orbit on Sunday to study the atmospheres of exoplanets and their host stars. The mission, codenamed Pandora, ...

一、Exoplanets托福听力原文： MALE PROFESSOR:OK,we've been discussing the planets in our solar system,and how some of the ones farthest from the Sun were discovered.Well,today I'd like to turn to what are ...