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

Join the exoparty

With new instruments and a growing number of discoveries, exoplanet and exomoon research is just getting started.

Where are the moons that orbit exoplanets?

Astronomers are searching for exomoons, or moons orbiting exoplanets. Although this idea has been around for a while, astronomers have only recently started having success in finding these elusive worlds.

Space brings out the best in us

Space exploration is at its core an optimistic, peaceful and cooperative endeavor. This week we look at some reminders of that spirit of exploration.

Alone in space, but not lonely

Comet Leonard heads out to roam free in interstellar space, alongside rogue planets, their moons, and maybe even life.

Is life possible on rogue planets and moons?

Our exploration of the solar system combined with two decades of exoplanet research tells us there are several possibilities for life to exist on starless planets and their moons.

Onward to 2022

Looking back at an amazing year in space, here on Earth and beyond.

Dunes and doppelgangers

What can we learn from patterns in the Martian sands? And what’s that Earth-like planet over there?

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