Maiken Scott reports on a lawsuit for advocates for the disabled claiming that putting those with mental illness in solitary confinement is unconstitutional. Emma Jacobs introduces us to a Temple professor who’s trying to use Twitter to enhance the classroom experience. State Impact, Pennsylvania’s Susan Phillips reports on calls for gas drilling companies to use water already polluted by the coal industry in the fracking process. Franklin Institute Chief Astronomer Derrick Pitts says while Mars merely has evidence of water that once existed, there’s one celestial body out there that actually has liquid H20 just below the surface. And Chris Satullo goes hunting for a purple squirrel.