Space Topics
All Space Topics by Group
Contests, Events, and Awards
Planetary Society space-related contests are a fun way to get involved with space exploration. Naming contests, essay contests, art contests, and more, Society space contests are often tied to real space missions with out of this world prizes.
Extrasolar Planets
Today, we know of more than 100 planets orbiting other stars, and that number is rapidly rising. Studying extrasolar planets could help us understand our own origins better and might help us determine whether life is common, or rare, in our galaxy.
How It Works
Exploring space has required the development of new technologies, new research techniques, and new ways of studying the heavens by thousands of dedicated scientists, engineers, and visionaries. Learn how all of this came together through timelines, explanations, and profiles of the history, techniques, people, and places of space exploration.
Near Earth Objects
Our solar system is teeming with asteroids and comets, some of which periodically pass close to Earth. These space rocks, called near-Earth objects, provide good opportunities for study and can also be potentially dangerous to Earth.
Our Solar System
Take a tour of our solar system. Explore the planets, their moons and ring systems, and learn about objects from the far reaches of our planetary neighborhood: asteroids, comets, and trans-Neptunian objects.
Search for Life
Does life exist beyond Earth? We search the skies for signs of intelligent life in the universe, and, as we learn more about the heartiness of life on Earth, the prospect of life on other planets becomes even more intriguing.
Space Missions
The spacecraft roaming our solar system are our eyes and ears in space. These robotic emissaries deliver the images and data that shape our current view of our solar system and our place within it.
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