Tickets will be available Monday, April 25 for JPL’s new approach to the one special weekend a year when it opens its doors to the public.

“A Ticket to Explore JPL,” so named to distinguish it from traditional Open Houses, will take place the weekend of June 4-5.

Tickets are free but limited, and will be distributed on a first-come, first-served basis. The ticket requirement applies to JPL employees as well as the public, but not to those working at the event or entering the Lab for normal work shifts.

Tickets will be available Monday, April 25 at 9 a.m. on JPL’s Special Events web page. Visitors may request to enter JPL on the half-hour between 8:30 a.m. and 1 p.m., based on availability.

The maximum number of tickets per family is five. All entering JPL to attend the event must have tickets in hand, and those age 18 or older must show a matching ID. Tickets are not transferable.

A short video explaining the ticketing is viewable at http://www.jpl.nasa.gov/events/open-house.php.