From the February 2008 issue

Ask Astro web extra: What is the difference between an asteroid and comet?

Bill Cooke of NASA's Marshall Space Flight Center answers this question.
By | Published: February 21, 2008
Ask Astro receives many questions concerning comets and asteroids. One of the most popular asks, “What is the difference between asteroids and comets?”

In this month’s Ask Astro web extra, Bill Cooke of NASA’s Marshall Space Flight Center answers this question.