NASA’s 10 Greatest Science Missions - Deepstash

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Pioneer 10 and Pioneer 11 were launched in 1972 and 1973. They were the first spacecraft to visit Jupiter and Saturn in a one-way voyage.

  • Pioneer 10 traveled through the solar system's asteroid belt between Mars and Jupiter.
  • A year-and-a-half after it's launch, it made the first flyby of the planet Jupiter and took up-close photos of the Great Red Spot.
  • A year later, Pioneer 11 flew by Jupiter, then toward Saturn, where it discovered a couple of small moons around the planet and a new ring.


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Voyager 1 and Voyager 2 probes followed after the Pioneers.

  • They made many important discoveries about Jupiter and Saturn.
  • Discoveries include rings around Jupiter and volcanism on Jupiter's moon.
  • Voyager made the first flybys of Uranus, where it discovered ten new moons.
  • It found that Neptune weighs less than first thought.
  • Both Voyager crafts can continue to transmit radio signals until at least 2025.
  • It is now exploring the edge of the solar system.


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The Wilkinson Microwave Anisotropy Probe (WMAP) was launched in 2001 and measured the temperature of the radiation left over from the Big Bang.

  • The craft can map out the fluctuations in the presumed cosmic microwave background radiation.
  • The data from WMAP revealed a better estimate for the age of the universe.
  • It confirmed that about 95 percent of the universe is composed of dark matter and dark energy.


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The Spitzer Space Telescope observes the heavens through infrared light.

  • It takes stunning photos of galaxies, nebulae, and stars.
  • In 2005, Spitzer detected light from extrasolar planets.


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Spirit & Opportunity

Spirit & Opportunity

In 2004, these twin Mars Exploration Rovers landed on opposite sides of the planet and explored it for more than five years.

Among the major finds is evidence that the surface of Mars once had liquid water.


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NASA/ESA spacecraft was launched in 1997 and reached Saturn in 2004. Since then its been orbiting around the planet and taking photos of the planets' rings, moons, and weather.

The Huygens and Cassini probes separated. Huygens made a trip to the moon Titan and landed on solid ground in 2005. Cassini is the first to orbit Saturn and study the system in detail.


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The earth's atmosphere blocks out most X-rays and prevents astronomers from viewing the universe in X-ray light - a high-energy, short-wavelength light.

  • In 1999, the Chandra X-ray Observatory was sent up to space. It scans the skies in X-ray light and can see X-ray sources 100 times fainter than any previous X-ray telescope.
  • Chandra showed scientists the first glimpse of Cassiopeia A, a supernova remnant.


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NASA's Viking 1 was the first man-made object that soft-landed on Mars in July 1976.

The Viking 1 lander is also the longest-running Mars surface mission, and sent the first color pictures back from the surface of Mars,


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The photos of the Hubble Space Telescope is recognized around the world. It has radically changed science.

NASA developed a tool that could reveal starts, planets, nebulae, and galaxies in detail.


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NASA's best space mission was the Apollo, taking humans along. The Apollo trips brought moonrocks home. The astronauts gathered data that helped us learn the likely age of the moon and what it's made of.


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