Comet cooking 101
Use these instructions to make your own versions of these celestial visitors.
December 21, 2012
|In my February story, “What Halley’s Comet taught us,” I mentioned that astronomers characterized the makeup of the famous celestial visitor as a “dirty snowball.” Once Halley made its most recent close approach, in 1986, the suite of probes that studied it in detail confirmed this view ⎯ mostly. It turns out that the comet’s nucleus is actually less volatile than scientists had suspected, meaning it was made up of more inert material than they thought, making it more of a “snowy dirtball.”|
Astronomy magazine subscribers can read the full article for free. Just make sure you're registered with the website.
You are currently not logged in. This article is only available to Astronomy magazine subscribers.
Already a subscriber to Astronomy magazine?
If you are already a subscriber to Astronomy magazine you must log into your account to view this article. If you do not have an account you will
need to regsiter for one. Registration is FREE and only takes a couple minutes.
Non-subscribers, Subscribe TODAY and save!
Get instant access to subscriber content on Astronomy.com!
- Access our interactive Atlas of the Stars
- Get full access to StarDome PLUS
- Columnist articles
- Search and view our equipment review archive
- Receive full access to our Ask Astro answers
- BONUS web extras not included in the magazine
- Much more!