Latest Lunar and Planetary Institute in Houston Stories
Two studies released on Monday provide increasing evidence that water exists not just on the moon, but on Mars as well.
New research adds to the growing body of evidence suggesting the Red Planet once had an ocean.
Word of the Day
- In Roman antiquity, the return of a person who had been banished, or taken prisoner by an enemy, to his old condition and former privileges.
- In international law, that right by virtue of which persons and things taken by an enemy in war are restored to their former status when coming again under the power of the nation to which they belonged.
The word 'postliminy' comes from a Latin word meaning 'threshold'.