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Stories, updates, insights, and original analysis from The Planetary Society.

Europa Clipper: A mission backed by advocates

Europa Clipper will soon head for Jupiter's icy, potentially habitable moon. Without the advocacy efforts of The Planetary Society and our members, the mission may never have been possible.

The Europa Clipper launch: What to expect

NASA is preparing to launch its flagship mission to explore Jupiter’s moon Europa. Launching sometime in October 2024 and arriving in 2030, the mission will explore the icy world with a subsurface ocean that scientists think could have conditions favorable to life.

What are competed planetary missions?

A critical part of a balanced exploration program, competed missions are scientist-led projects that cost less and occur more frequently than large, flagship-class missions.

How do humans try to communicate with aliens?

SETI is the search for extraterrestrial intelligence, using various techniques to look for signals from advanced alien civilizations. METI (messaging extraterrestrial intelligence) is when we send out our own signals for aliens to find.

Way out there

We’re always learning more about the worlds of the outer Solar System, and even those beyond.

Moonshadow, Moonshadow

The Moon casts shadows on itself and on Earth, environmental concerns overshadow a test launch’s success, and exoplanets are awesome (beyond a shadow of a doubt).

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