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Who: Soviet Union
Where: Space
Importance: The world's first man made satellite, which marked the start of the space age and the U.S. space race. -
Who: NASA
Where: Space
Importance: The first space satellite of the United States. -
Who: NASA
Where: Orbit around Earth
Importance: Carried the first astronaunts into space -
Who: NASA
Where: Mars
Importance: The first succesful mission to Mars with data returned to Earth. -
Who: NASA
Where: Space
Importance: Humanity's first reuseable spacecraft -
Who: NASA
Where: Venus
Importance: Made the first global map of the surface of Venus as well as global maps of the planet's gravity field. -
Who: NASA
Where: Above Earth's Atmosphere
Importance: Gives us a view of the universe that typically far surpasses that of ground-based telescopes. -
Who: NASA
Where: The Sun
Importance: Mission was to orbit the Sun and study it all latitudes. In addition several comets were studied by the Probe. -
Who: NASA
Where: Space
Importance: Serves as a microactivity and space environment research laboratory sending information back to Earth. -
Who: NASA
Where: Mars
Importance: The first systematic observations of how morning fogs, clouds, and surface frost develop in different seasons on Mars. -
Where: Space
Who: NASA
Importance: A research satellite in orbit around Earth, studying the precipatation, evaporation, and cycling of water. -
Where: Space
Who: NASA
Importance: To find planets around other stars, called exoplanets, in search of potentially habitable worlds. -
Who: NASA
Where: Space
Importance: To study the asteroid belt, the protoplanet Vesta, and the Dawf planet Ceres. -
Who: NASA
Where: Above Earth's Atmosphere
Importance: Observes Earth's seas' from space -
Who: NASA
Where: The Moon
Importance: Has uncovered the orgin of massive invisable regions that make the moons gravity uneven, a phenomenon that affects the operations of lunar-orbiting spacecraft.
