BBC Focus Magazine

[M Paul Lloyd]

Worth a look.
Mars moon Phobos seen in detail by European probe

New pictures have been released of the Martian moon Phobos, acquired by the European Mars Express (Mex) probe during its recent flybys.
The images reveal details down to a resolution of just 4.4m per pixel.
Mex began a series of 12 close passes in mid-February. The observation schedule continues until 26 March.
One flyby skimmed past the surface at just 67km, the nearest any manmade object has ever got to the little Martian moon.
The new images of Phobos come from 7 March approach when the spacecraft achieved an altitude just above 100km.
http://news.bbc.co.uk/1/hi/sci/tech/8568827.stm

[Jamie]

Cool, they always remind me of giant potatoes.

[Shadowwolf]

That's what I thought

[MrIsaksson]

What are the lines you see going across Phobos?

[Pandora]

What are the lines you see going across Phobos?

I was going to ask the exact same question Mr Isaksson!

[M Paul Lloyd]

What are the lines you see going across Phobos?

Good question, they appear to be Rills of some sort but how or why they come to be there, I don't think anyone actually knows.

[The Beige Avenger]

probably tumbling rock / ice... Phobos is so light that its pull isn't anything to worry about so impacting thingies would not likely be so straight like the path they'd tend to take impacting into larger bodies.