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<strong>Planets</strong>

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<h1>Mars</h1>

<img src="/img/planets/mars.jpg" alt="Photo of Mars">

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  <dt>Discoverer:</dt><dd>Galileo Galilei</dd>
  <dt>Discovered:</dt><dd>1610</dd>
  <dt>Orbital Period:</dt><dd>686 days</dd>
  <dt>Mean Radius:</dt><dd>3396 km</dd>
  <dt>Axial Tilt:</dt><dd>25°</dd>
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<p><em>Mars</em> is the fourth planet from the Sun and the second smallest planet in the Solar System. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the volcanoes, valleys, deserts, and polar ice caps of Earth.</p>




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