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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.

Cheat sheets for Vesta's craters and Dawn's Vesta timeline

Emily Lakdawalla • April 19, 2012

I made myself a cheat sheet to many of Vesta's distinctive-looking craters, and also wrote down a list of the major dates in the timeline of Dawn's exploration of Vesta.

This is how far human radio broadcasts have reached into the galaxy

Emily Lakdawalla • February 24, 2012 • 6

There is an ever-expanding bubble announcing Humanity's presence to anyone listening in the Milky Way.

The Scale of the Universe, by Cary and Michael Huang

Emily Lakdawalla • February 16, 2012

Cary and Michael Huang present a basic "powers of ten" visualization starting at human scale from which you can scrub downward smaller than quarks or upward to the scale of the entire universe.

Where are the big Kuiper belt objects?

Emily Lakdawalla • February 16, 2012 • 8

Earlier today I wrote a post about how to calculate the position of a body in space from its orbital elements. I'm trying to get a big-picture view of what's going on in trans-Neptunian space.

The Arecibo Trip

Bill Nye • February 03, 2012 • 1

I have just returned from my first Planetary Society-sponsored trip to Puerto Rico and this historic, remarkable, big idea of a telescope.

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