JUNE SIMMS: This is SCIENCE IN THE NEWS, in VOA Special English. I'm June Simms. SHIRLEY GRIFFITH: And I'm Shirley Griffith. Today, we tell about the planet Venus and what the American space agency is ...

June 2004 saw the first passage, known as a ‘transit’, of the planet Venus across the face of the Sun in 122 years. Transits have helped shape our view of the whole Universe, as Healther Cooper and ...