CASTINE – The Challenger Learning Center of Maine will hold its 2003 Space Showcase for teachers of kindergarten through grade 12 at 9 a.m. today at Maine Maritime Academy.

The daylong workshop will emphasize science, math and technology topics for classroom initiatives and will feature speaker Sharon Eggleston, coordinator of New England Space Day.

Registration fee for the event is $20. For information, call 326-2256.