Comments:Study suggests Mars hosted life-sustaining habitat for millions of years

Back to article

This page is for commentary on the news. If you wish to point out a problem in the article (e.g. factual error, etc), please use its regular collaboration page instead. Comments on this page do not need to adhere to the Neutral Point of View policy. Please remain on topic and avoid offensive or inflammatory comments where possible. Try thought-provoking, insightful, or controversial. Civil discussion and polite sparring make our comments pages a fun and friendly place. Please think of this when posting.

Use the "Start a new discussion" button just below to start a new discussion. If the button isn't there, wait a few seconds and click this link: Refresh.

So, it seems sometimes the climate of a planet can change without man's help.

Who knew?

Presumably, anyone who knows anything at all about the subject knew.