NASA hopes that Dawn's year long orbit around Vesta will help scientists learn more about the development of the solar system, and how asteroids and other space objects were created.

VOA: special.2011.07.27

It's now five in the morning, and Boston office towers are punching through the dawn haze.

VOA: standard.2010.07.20

Endeavour's last scheduled night launch went smoothly in the pre-dawn hours Monday.

VOA: standard.2010.02.08