NASA has put the anticipated VERITAS mission to Venus on an indefinite hold. It would fill the massive gaps in our knowledge about Venus, and help scientists determine what causes a potentially habitable planet to develop an inhospitable atmosphere. You can sign the petition to congress here:
New 'warm Jupiter' exoplanet has a weird orbit and another planet may be to blame
This new Mars map archive puts the entire Red Planet in the palm of your hand (video)