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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

Seeing Ceres: Then and Now

Paul Gilster • March 06, 2015 • 1

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

Intro Astronomy Class 6: Mars (continued) and Asteroids

Bruce Betts • March 14, 2014

Continue exploring Mars and learn about asteroids in this video of class 6 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

My ever-popular asteroids-and-comets montage, now in color, with bonus Toutatis

Emily Lakdawalla • December 18, 2012 • 9

My collage of all the asteroids and comets visited by spacecraft is probably the single most popular image I have ever posted on this blog. I've now updated it to be in color and to include Toutatis.

Door 27 in the 2010 advent calendar

Emily Lakdawalla • December 27, 2010

Time to open the twenty-seventh door in the advent calendar. Where in the solar system is this flat-floored depression?

Boulders and Ponds on 433 Eros

Emily Martin • December 13, 2010

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 "ponds".

Report from the Exploration of Near-Earth Objects Objectives Workshop - Day 2

Bruce Betts • August 11, 2010

It's day 2 at NASA's Exploration of Near Earth Objects (NEO) Objectives workshop (ExploreNOW).

Planetary Society Advent Calendar for December 2: Mathilde

Emily Lakdawalla • December 02, 2009

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.

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