Words similar to planetary

Example sentences for: planetary

How can you use “planetary” in a sentence? Here are some example sentences to help you improve your vocabulary:

On the front page of Wednesday's Le Monde of Paris, the famous French economist and former presidential adviser Jacques Attali said the world was on the edge of an abyss and could plunge into "a planetary recession of which democracy, in several countries, could be the principal victim."
Their modeling suggested that if microbes existed or exist on Mars, viable transfer to Earth is not only possible but also highly probable, due to these microbes' impressive resistance to the hazards of space transfer and to the dense traffic of Martian meteorites that have fallen to Earth since the dawn of our planetary system.
Newsweek 's cover story says astronomers have witnessed the formation of a planetary system much like our own.
The United States and other spacefaring nations are required by treaty to protect Mars and other non-earthly planetary systems from contamination by earthly microorganisms.
A single planetary authority is unlikely; instead, institutions such as the WTO will mediate international disputes and weaken national sovereignty.