About Me

My photo

Tech journalist since the dark ages. Windows Secrets, LangaList newsletter, Windows Magazine (NetGuide, Home PC), Byte, Popular Computing, yadda yadda yadda. Google me, if it matters.

This feed is mostly personal interest; it's NOT my professional writing. There's tech here, yes, but also lots of general science and some politics and weird humor thrown in.

Tuesday, December 2, 2014

The first true color image of Comet 67P

You've seen numerous black and white photos of Comet 67P, which make the comet look grey.

Back here, we talked about how its gaseous emissions were a mix of ammonia, methane, formaldehyde, hydrogen sulphide, hydrogen cyanide, sulphur dioxide and carbon disulphide.

To a human nose, this would be combination of "rotten eggs, cat urine and bitter almond."

Now we know what the comet looks like to a human eye.

Here's the first true color image of Comet 67P, showing that when you cook those organic compounds in high-UV sunlight, they turn a reddish brown:



Story: http://tinyurl.com/lssom29