The Hubble Space Telescope has taken another image of Mars in opposition [bbc.com]:
The Red Planet and Earth are nearing what is called opposition, when their orbits line them up with the Sun - and put them very close to each other. This occurs every 780 days or so, and enables the super-sharp HST to see surface details that are just 30km across. Hubble has imaged Mars at this time routinely since its launch in 1990.
More details and images at HubbleSite [hubblesite.org].