Gallery: Hubble's greatest hits - 20th anniversary

Gallery: Hubble's greatest hits - 20th anniversary

Summary: The Hubble space telescope was a total bust after it was dropped from space shuttle Discovery 20 years ago. But some fine tuning turned it into a grand scientific achievement.

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TOPICS: Nasa / Space
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  • Another huge Hubble discovery was a missing link in what we knew about planet formation. Here's how NASA descibes it" "Take light and fluffy stardust, condense to rocks. It's the "condense to rocks" part scientists have been eager to see. Like making a pizza, a cloud of stardust has to go from a blob to a relatively flat disk to form a new star and planet system." Here's a piece of Orion where planets are forming.

    Credit: NASA

  • In 2007 the Hubble detected the first-ever organic molecule in the atmosphere of a planet orbiting outside our solar system. An artist's view of planet HD 189733b.

    Credit: NASA/ESA/G. Bacon (STScI)

  • In 2001, Hubble observed an explosion 10 billion light-years from our planet greatly bolsters the case for the existence of a mysterious form of "dark energy" pervading the cosmos.

    Credit: NASA and A. Reiss

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Topic: Nasa / Space

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