Astronomy Picture of the Day · January 19, 2009

Methane Discovered in the Atmosphere of Mars

The Astronomy Picture of the Day for January 19, 2009 is “Methane Discovered in the Atmosphere of Mars,” an image. It is credited to Credit: NASA. The original explanation runs about 175 words.

From the explanation

“Why is there methane on Mars? No one is sure.”

— APOD editors, January 19, 2009

Read the full explanation on science.nasa.gov

At a glance

Date: January 19, 2009
Type: Image
Credit: Credit: NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 175 words