1. CURRENT EVENTS ON THE MOON V.V.Shevchenko 1,2, P.C.Pinet 1, S.Chevrel1, Y.Daydou 1, Y.Lu 2, T.P.Skobeleva 2, O.I.Kvaratskhelia 3, C.Rosemberg 1 1 UMR 5562 “Dynamique Terrestre et Planetaire”/CNRS/UPS, Observatoire Midi-Pyrenees, Toulouse, 31400 France; 2 Sternberg Astronomical Institute, Moscow University, Moscow, 119992, Russia, 3 Abastumany Astrophysical Observatory, Georgian Academy of Sciences, Georgia THE SECOND MOSCOW SOLAR SYSTEM SYMPOSIUM MOONS OF PLANETS MOSCOW 2011 IKI RAS

2. ReinerCarrelDaniellMaury A M109569228LM111422761LM106676014RM108964159R SLOPE AVALANCHE DEPOSITS IN CRATERS LRO/LROC IMAGES

3. IMAGES FROM «CHANG’E – 2» D 21 km D 40 km D 30 km

4. SLOPE MOVEMENT OF MATERIAL in crater MAURY A Area 1 (M108964159R) Area 2 (M108964159R) Area 3 (M137271328L)

5. Lucey’s spectral method

6. SLOPE MOVEMENT OF MATERIAL IN CRATER BURG R 415 + R 750 +R 950 1 2 3 1 2 3 M101977752R M113778346L

7. Calculated exposure age, corresponding to value of OMAT ~ 0,7 – 0,8, is about a few years

8. AREA 3 IN CRATER BURG IMAGE FROM LROCIMAGE FROM “CHANG’E – 2” It’s possible the process is present

9. SLOPE MOVEMENT OF MATERIAL IN CRATER REINER FRAGMENT OF M135548391L Phase angle 57.73 о, Resolution 0.495 m/px Slope angle 13 – 14 o Flow thickness 1 – 2 m Width of a flow 15 – 20 m Length of a flow 850 – 900 m Mass of soil in one flow 40x10 3 t PREDICTION: Sliding friction factor 0.2 – 0.4 Grain size of moved material < 10 

10. CURRENT EVENTS ON MERCURY? CRATER DEGAS (D = 53 km) Image from MESSENGER spacecraft, 17.06.2011

11. CURRENT EVENTS ON PHOBOS? IMAGE OF STICKNEY FROM “MARS EXPRESS” (2008)

12. CURRENT EVENTS ON ICE MOONS OF SATURN? PHOEBE (p=1.3 g/cm 3 ) DIONE (p=1.5 g/cm 3 ) Images from CASSINI spacecraft

13. CURRENT EVENTS ON VESTA? IMAGES FROM “DAWN”, July - August 2011

14. CURRENT EVENTS ON VESTA? IMAGE FROM “DAWN”, September 2011

15. Summary: We known now that is possible to observe the nearest, current events on our “lifeless” celestial companion. Probably this event is common for all atmosphereless bodies of Solar System.