According to a recent news release on NASA's official website, Hubble Telescope on a three-day observation period captured some fine details of the Comet 332P that is disintegrating about 150 million miles from the sun.
Mars Rover: How To Identify Fake Photos By iDigital Times Staff Rep | Since so little is known about Mars, it's tough to determine what photos can be trusted. Many fake photos of Mars circulating the internet are fake. The best way to determine whether a photo is fake or not is to check NASA's official website, where all of the Mars rover photos are published. You can even download RAW files of Mars photos.
Have you seen NASA's official Mars website? http://mars.nasa.gov/ Plenty of videos, images, and infographics like this. (Note: this is dated 2013, so some distances are no longer accurate, like Curiosity!)