NASA has hit a comet with an impactor, during the Deep Impact mission. The goal of that mission was to study the surface by making a crater and stirring up the surface material so it could be studied.

I think Dawn has done an amazing job showing that asteroids aren't just hunks of rock. They're worlds - they're places an astronaut can explore. I think the Rosetta mission also did an amazing job of that.

NEOWISE has two goals: One is to characterize asteroids, figure out how big and how bright they are, really basic information about these bodies; and we also find asteroids.

Changing the asteroid's velocity changes the time when the asteroid crosses Earth's orbit. After all, just because it crosses Earth's path doesn't mean there is necessarily going to be a collision. It has to cross Earth's path when the Earth is right there.

The genesis of a poem for me is usually a cluster of words. The only good metaphor I can think of is a scientific one: dipping a thread into a supersaturated solution to induce crystal formation. I don't think I solve problems in my poetry; I think I uncover the problems.

Jigsaw Lady is the working title of a science fiction novel I've had in my head for darn near 15 years. I think I'll start work on it next year (in all my spare time) but I'd like to get it finished some day.

So, one of the biggest things about YouTube versus any other platform is the built-in audience and discovery tools.

Perhaps writers should never be allowed to get together in a workplace context. It's not like studying computer science, after all. The emotions are at large, and are shared and are questioned. There is a vulnerability.