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

Seeing Ceres: Then and Now

Technology writer Paul Gilster shares his interest in how we depict astronomical objects, focusing on the dwarf planet Ceres.

Boulders and Ponds on 433 Eros

There is really cool geology being explored on large, oddly shaped asteroids. The Near Earth Asteroid Rendezvous (NEAR) mission reached 433 Eros in 2000, and one of the exciting results was the discovery of features called

Planetary Society Advent Calendar for December 2: Mathilde

253 Mathilde is the largest asteroid that has ever been visited by a spacecraft. It's held that distinction for more than twelve years, but next year it'll be upstaged by the considerably larger 21 Lutetia, which Rosetta will fly by on July 10.

Space is vast. There's a lot of exploring to do.

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