After the good news that the Arlington’s David M. Brown Planetarium received a $100,000 donation in December, we have news via Aviation Week that the county will keep and refurbish the planetarium. Arlington school superintendent Patrick Murphy announced in his annual budget request that he is dropping plans to close the planetarium. Along with the $100,000 donation, community organizers raised more than $286,000 in private donations in an effort to save the planetarium.