Related by context. Frequent words. (Click for all words.) 42 neighboring Buner 40 semiautonomous tribal 39 forbidding terrain 38 HiRISE camera 38 Roadside bombs kill 38 Entire towns 38 guerrilla strongholds 38 Derrick Cheng 37 Vast tracts 37 synthetic aperture radar 37 Afghanistan 37 regions bordering 37 militants overran 36 Entire villages 36 heliborne 36 rugged mountainous region 35 Roadside bombings 35 U.S. 34 Gen. Ken Watkin 33 Compton Gamma Ray 33 spacecraft orbiting 33 largely ungoverned 33 NASA Stardust spacecraft 33 By CARMEN GENTILE 33 large swaths 33 Opium cultivation 33 Messenger spacecraft 33 lawless northwest 33 arid plains 32 IKONOS 32 Cartosat 2B 32 headlong retreat 32 steep mountainsides 32 Said Tayeb Jawad 32 Deep Impact probe 32 Iraq 31 interplanetary spacecraft 31 Escalating violence 31 highly elliptical orbit 31 infrared imagery 31 NASA Lunar Reconnaissance 31 NASA Cassini spacecraft 31 Global Surveyor 30 Moderate Resolution 30 lawless frontier 30 mountainous 30 Krajina region 30 MODIS 30 Lunar Reconnaissance Orbiter LRO 30 Kabul Karl Eikenberry 30 Widespread looting 30 WASHINGTON MENL 30 Pakistan 30 Swat valley northwest 30 reconnaissance satellites 30 unmanned spacecraft 30 mudflows 30 Viking landers 30 Pentagon 29 Cosmic rays 29 thinly populated 29 Voyager spacecraft 29 country 29 hypersonic flight 29 TerraSAR X 29 Comet Swift 29 swaths 29 rover Opportunity 29 Mars orbiter 29 dust devils 29 spacecraft 29 Swathes 28 Entire neighborhoods 28 Imaging Spectroradiometer MODIS 28 Morocco annexed 28 supercells 28 field Infrared Survey 28 Wilkinson Microwave Anisotropy Probe 28 polar vortex 28 rovers Spirit 28 rover Spirit 28 Polar Lander 28 vast swathe 28 Valles Marineris 28 APNewsAlert 28 orbiting spacecraft 28 Armenian separatists 28 Faisal Shahzad naturalized 28 atmospheric disturbances 28 orbiting Saturn 28 Galileo spacecraft 28 flyby spacecraft 28 wide swaths 28 Saturn moon Enceladus 28 Crimean Peninsula 28 NASA Mars Reconnaissance 28 vast swathes 27 U.S. 27 NEXTMap USA 27 windblown dust 27 robotic probes