One day earlier this year a high resolution image of Mars showing clouds
casting shows was announced on <sci.space.news>; the image is at
http://themis.asu.edu/zoom-20080616a.

If you downloaded it look at the bottom left of the image and you will see a
long, narrow, curved trail made by a BMX type vehicle. In the top right
corner there is another, straighter, trail where the rider has gone to
explore two big deep pits (too elongated to be craters).

I suppose these trails could have been made very hard impactors arriving
almost horizontally and rolling to a halt; but I like the bike theory
better!

-- 
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j

On Aug 21, 11:34 pm, Rodney Blackall wrote:

> One day earlier this year a high resolution image of Mars showing clouds
> casting shows was announced on <sci.space.news>; the image is athttp://themis.asu.edu/zoom-20080616a.
>
> If you downloaded it look at the bottom left of the image and you will see a
> long, narrow, curved trail made by a BMX type vehicle. In the top right
> corner there is another, straighter, trail where the rider has gone to
> explore two big deep pits (too elongated to be craters).
>
> I suppose these trails could have been made very hard impactors arriving
> almost horizontally and rolling to a halt; but I like the bike theory
> better!
> --
> Rodney Blackall

Nice try, Rodney. Best leave it to the experts, eh? ;-)

I got the Tracking Proficiency badge in the Wolf Cubs.

And, I was Chief Sixer, so I easily outrank you!

That's no more a Schwalbe Kevlar Extreme Airborne Inversion than I'm a
tricktricyclist.

My expert impression is that these are Martian microbe tracks produced
by dragging Lin's body parts around.

Or is that just wishful thinking?