New playgroup: Thursdays, 10am-noon, Claremont Meadows Community Centre, Sunflower Drive. For children aged to six, and their carers. Details: Samantha, 1800 171 882 or just pop in.
Astronomy night: Colourful and dynamic summary of what you need to know about the cosmic engine and astrophysics at UWS Penrith Observatory, Great Western Highway, Werrington North (Building AO), tonight, 7pm-9pm. Opportunity for HSC students to revise these topics. Cost: $15 adult; $10 child/concession; $40 family. Details: 4736 0135 or uws.edu.au/observatory.
Walking group: For adults with an intellectual disability at Penrith's International Regatta Centre, Old Castlereagh Road, 10am, Saturday. Cost: $7.50. Bookings: 0406 865 380 or lifelinksws.com.
Computer club: Senior classes for beginners, advanced and internet. Mondays, Tuesdays, Wednesdays and Thursdays. Details: Margaret, 9864 6528.