I am reminded of a story of an apprentice mudlogger who dutifully recorded thousands of feet of section as "mudstone" vs "claystone" depending on whether it was greenish or reddish. In fact, it was all the same stuff, just differntly oxidised.
Similarly, flows on Mars are generally Grey. If the background is pale, they look dark grey. If the background is dark, they look light grey.
MOC uses 7-bit colour. All intensities are scaled prior to human vision and the scaleing parameters are not reliably reported in most press releases. For all we know, this could be a moderately dark grey flow on very dark grey rock, or a pale flow, on VERY pale rocks...
Sometimes, a flow may be a different colour, because the debris comes from a different rock type, of a different. Does this make the flow a different process?
Space/Science » in reply to why bright?
re: why bright?
The whole thread (61 posts)
- Now what? Another NASA "significant find" briefing coming up.
- So how long before MRO can get a good look at it?
- Way off topic posts removed.
- were those posts by any chance my posts?
- Yup
- If NASA schedules the announcement of bogus claims about water on Mars to coincide with the release of bad news from Iraq, then it belongs right here
- Yup
- were those posts by any chance my posts?
- I've seen these in the mountains...
- re: So what? Another NASA "significant find" briefing coming up.
- Back and forth, back and forth, back and forth
- Why water (vs dry/gas flow)?
- A little more (big pic)
- Also some brand new impact craters! (n/t)
- Briefing on now (10 AM Pacific). Liquid water flow. (n/t)
- MGS Relayed Picture Of Great Galactic Ghoul Before Being Gobbled Up?
- Scuttlebutt: Liquid water (n/t)