(click on image to enlarge)
From ESA (5/19):
"During May 2016 the Earth and Mars get
closer to each other than at any time in the last ten years. The
NASA/ESA Hubble Space Telescope has exploited this special configuration
to catch a new image of our red neighbour, showing some of its famous
surface features. This image supplements previous Hubble observations of
Mars and allows astronomers to study large-scale changes on its
surface.
On 22 May Mars will come into opposition, the point at which the planet is located directly opposite the Sun in the sky. This means that the Sun, Earth and Mars line up, with Earth sitting in between the Sun and the red planet."
