Author Cristina Della Rosa will look at the funny side of “Astronomy, Aliens and Astronauts,” followed by “The Sky Tonight” on the Spitz projector at the Marie Drake Planetarium on June 27. The presentation will be at 7 p.m. and is free; all ages are welcome. The Marie Drake Planetarium is located at 1415 Glacier Highway. For more information, go to mariedrakeplanetarium.org or call 500-2941.