Saturday, March 9. C.M. Crockett Park. 7pm -11pm. 10066 Rogues Road, Midland. A Messier Marathon is an attempt, ususally organized by amateur astronomers, to find as many ‘Messier objects’ as possible during one night. This will be a great opportunity to try to see the Messier objects because many telescopes will be avaialbel thanks to the Northern VA Astronomy Club. Please dress appropriately and bring blankets and snacks. Cost: FREE to county residents; $6 non-residents. For reservations or more information, call (540) 788-4867.