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From the top of Cerro Pachón mountain in Chile

Two experiments searching for the nature of dark energy

In this Focus, in the form of an article to download (see below), we welcome Steven Kahn, director of the Large Synoptic Survey (LSST) telescope, and Yannick Mellier, head of the Euclid space mission of the European Space Agency (ESA), two of the major experiments which will be searching for the nature of dark energy in the 2020s. Both of them give us their point of view on this search, and discuss how their respective instruments will address the challenges of this ambitious programme.

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This article is from the free online course:

Gravity! The Big Bang, Black Holes and Gravitational Waves

Paris Diderot

Course highlights Get a taste of this course before you join:

  • Galileo and the falling bodies
    Galileo and the falling bodies
    video

    Watch Pierre Binétruy explain how Galileo found the law of free, using a combination of real (inclined plane) and thought experiments (12 minutes)

  • First encounter with relativity
    First encounter with relativity
    video

    Pierre Binétruy focuses on the notion of inertia, measured by mass, frame of reference and Galileo's principle of relativity