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  2. Benefits of space exploration - Wikipedia

    en.wikipedia.org/wiki/Benefits_of_space_exploration

    Space agencies, governments, researchers and commentators have isolated a large number of direct and indirect benefits of space exploration programs including: New technologies that can be utilized in other industries and society (such as the development of communications satellites) Improved knowledge of space and the origin of the universe.

  3. Satellite imagery - Wikipedia

    en.wikipedia.org/wiki/Satellite_imagery

    Planet's Dove satellites are CubeSats that weigh 4 kilograms (8.8 lb), 10 by 10 by 30 centimetres (3.9 in × 3.9 in × 11.8 in) in length, width and height, [14] orbit at a height of about 400 kilometres (250 mi) and provide imagery with a resolution of 3–5 metres (9.8–16.4 ft) and are used for environmental, humanitarian, and business ...

  4. Rover (space exploration) - Wikipedia

    en.wikipedia.org/wiki/Rover_(space_exploration)

    Rover (space exploration) A rover (or sometimes planetary rover) is a planetary surface exploration device designed to move over the rough surface of a planet or other planetary mass celestial bodies. Some rovers have been designed as land vehicles to transport members of a human spaceflight crew; others have been partially or fully autonomous ...

  5. Earth science - Wikipedia

    en.wikipedia.org/wiki/Earth_science

    Earth science or geoscience includes all fields of natural science related to the planet Earth. [ 1] This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere, hydrosphere / cryosphere, atmosphere, and geosphere (or lithosphere ). Earth ...

  6. Space mirror (climate engineering) - Wikipedia

    en.wikipedia.org/wiki/Space_mirror_(climate...

    Space mirrors in orbit around the Earth, as designed by Hermann Oberth, are intended to focus sunlight on individual regions of the earth's surface or deflect it into space. It is therefore not a question of the weakening of the solar radiation on the entire exposed surface of the Earth, as would be the case when considering the establishment ...

  7. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a strict systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. [1] [2] Modern science is typically divided into three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study ...

  8. History of Earth - Wikipedia

    en.wikipedia.org/wiki/History_of_Earth

    Earth formed in this manner about 4.54 billion years ago (with an uncertainty of 1%) [25] [26] [4] and was largely completed within 10–20 million years. [27] In June 2023, scientists reported evidence that the planet Earth may have formed in just three million years, much faster than the 10−100 million years thought earlier.

  9. Planet Earth (franchise) - Wikipedia

    en.wikipedia.org/wiki/Planet_Earth_(franchise)

    Planet Earth II is a natural history documentary series, produced by the BBC as a sequel to the highly successful Planet Earth television series, which aired roughly a decade earlier, in 2006. [8] The series was presented and narrated by Sir David Attenborough with the score composed by Hans Zimmer .