The Northern Indiana Pastel Society (NIPS) announced a call for art for the Transit of Venus in Pastel exhibit.  From the December 2011 Newsletter:    

Harris Branch
Mishawaka-Penn-Harris Library
51446 Elm Road, Granger IN 46530
May 1 to June 9, 2012
Reception 7:00 to 8:30 p.m., Wednesday, May 9, 2012
Deliver art to the gallery 10:30 a.m. to 12:20 p.m. Saturday, April 28.  Art will be released 10:30 to noon Saturday, June 9. 
Entrants must be members of NIPS.

Scientists and astronomy enthusiasts are gearing up for this heavenly event, June 5, 2012, when the planet Venus passes between Earth and the sun. We will see the distant planet as a small dot gliding slowly across the face of the sun. Historically, this rare alignment is how we measured the size of our solar system. Visit www.transitofvenus.org for more information. 

Members are invited to use ideas such as Venus, planets, sun, moon, stars, space, sky, sunset, new worlds, habitable planets or related themes. The art also will be featured in an online gallery linked to other Transit of Venus events around the world.