The experimental project could one day make it possible for solar sails to propel spacecraft to other worlds.
Harvard astronomers have suggested that the first known interstellar visitor could be an alien probe.
A few hairs from the late science fiction author will be on board a pioneering new solar sail mission.
The Japanese space agency will be launching the first ever spacecraft fully propelled by a solar sail.
Scientists continue to explore the possibility of using a solar sail to propel spacecraft at great speeds through space ...