Autonomous vehicle technology has gotten better, but how close are we really to a time when a robot chauffeur will be able to safely drive us?

Our moon has winked from the heavens as a symbol and anchor, reminding us not only the cycle of life, but also of danger and death. Scientists have brought the moon into sharper focus, and astronauts have left the first footprints there. But will we ever be able to explain its lasting, mesmerizing power of attraction?

An international treaty laid out the basics of space law in 1967. But without a lot of case history to go on, lawyers today have looked to maritime law and Arctic exploration as they lay the groundwork for how space will be governed.

To launch its lunar landing project, NASA had to find ways to convince the American public that the costly, audacious pursuit was essential. One lasting result: Tang breakfast drink.