subsurface investigation
21soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …
22Carl Sagan — Sagan in 1980 Born November 9, 1934( …
23Life on Mars — For other uses, see Life on Mars (disambiguation). An artist s impression of what Mars surface and atmosphere may look like if Mars were terraformed. Scientists have long speculated about the possibility of life on Mars owing to the planet s… …
24Mars Reconnaissance Orbiter — Conceptual image depicting the Mars Reconnaissance Orbiter in an elliptical low planet orbit around Mars Operator NASA / JPL Major contractors Lockheed Ma …
25Callisto (moon) — Callisto View of the heavily cratered terrain of Callisto s anti Jovian hemisphere obtained in 2001 by NASA s Galileo spacecraft. The large impact structure Asgard is on the limb at upper right. The prominent rayed crater below and just right of… …
26Deepwater Horizon explosion — This article is about the explosion. For the drilling rig and oil spill, see Deepwater Horizon (disambiguation). Deepwater Horizon explosion Anchor handling tugs and platform supply vessels combat the fir …
27Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock …
28Titan (moon) — Titan Titan in 2005 by Cassini spacecraft Discovery Discovered by Christiaan Huygens …
29Exploration geophysics — is the applied branch of geophysics which uses surface methods to measure the physical properties of the subsurface Earth, in order to detect or infer the presence and position of concentrations of ore minerals and hydrocarbons. Exploration… …
30agricultural technology — Introduction application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …
