     material:
       title: "False-positives - Eclipsing binary stars"
       text: """
-        One of the most common false-positives we have to deal with are eclipsing binary stars. This is when another star is transiting, rather than a planet. These tend to produce much deeper transits due to stars being much larger than planets, and they also show secondary eclipses, when the smaller star passes behind the larger star (see the diagram below). However, there a few ways in which an eclipsing binary system can mimic a transiting planet. Firstly, if the second star is only partially transiting the disc of the first star then the amount of light blocked is smaller and the depth of the transit may be similar to that caused by a planet. This is called a ‘grazing eclipsing binary’.
+        One of the most common false-positives we have to deal with are eclipsing binary stars. This is when another star is transiting, rather than a planet. These tend to produce much deeper transits due to stars being much larger than planets, and they also show secondary eclipses, when the smaller star passes behind the larger star (see the diagram above). However, there a few ways in which an eclipsing binary system can mimic a transiting planet. Firstly, if the second star is only partially transiting the disc of the first star then the amount of light blocked is smaller and the depth of the transit may be similar to that caused by a planet. This is called a ‘grazing eclipsing binary’.
         """
       figure: "./images/mini-course/slide-6.jpg"
       figure_credits: ""

      title: "How else can we discover planets? - Direct Imaging"
      text: """
        <p>The separation and extreme difference in brightness between exoplanets and their host stars makes it very difficult to image them directly. However, there are a handful of exoplanet candidates  that have been discovered this way. All of them have very large radii and lie in distant orbits.</p>
        <p>Below is an image showing the directly imaged exoplanet candidate orbiting in the debris disk around the star Formalhaut.</p>
        """
      figure: "./images/mini-course/slide-22.jpg"
      figure_credits: "Image credit: NASA"

    material:
      title: "Planet Hunters 2b"
      text: """
        PH2b is the second planet discovered by volunteers on Planet Hunters. It is a Jupiter-sized, gas giant planet in orbit around a star very similar to our Sun. It’s orbit is only 17% smaller than that of the Earth, putting it in a region known as the habitable zone, the distance from a star where the conditions may be right for life. You will learn more about the habitable zone later. Above is an artist’s impression of the view from a hypothetical habitable moon in orbit around PH2b.
        """
      figure: "./images/mini-course/10-2b.png"
      figure_credits: "Image Credit: H. Giguere, M. Giguere"
