A SATELLITE IS an airborne autonomous platform that carries a set of sensors to capture information on the surface of the earth, including vegetation,
Scuba-diving involves the voluntary immersion of a person in salt or fresh water . The acronym SCUBA stands for Self Contained Underwater Breathing
Shute, Nevil (1899 - 1960)
(born Jan. 17, 1899, Ealing, Middlesex, Eng.—died Jan. 12, 1960, Melbourne, Vic., Australia) English-born Australian novelist. Trained as an
the investigation of physical conditions in space and on stars, planets, and other celestial bodies through the use of artificial satellites
Space travel, the act of sending objects and humans beyond Earth's atmosphere, includes both orbiting Earth and traveling far beyond Earth's gravity.
space vehicle carrying sophisticated instrumentation but no crew, designed to explore various aspects of the solar system (see space exploration ).
The space race was an intense but undeclared competition between the United States and the Soviet Union in which each tried to outdo the other in
reusable U.S. space vehicle (1981–2011). Developed by the National Aeronautics and Space Administration (NASA) and officially known as the Space
Sputnik, the first artificial satellite, opened the space era and sparked competition between the Soviet Union and the United States. In 1948 a group
naval craft capable of operating for an extended period of time underwater. Submarines are almost always warships, although a few are used for