The Planetary Exploration Newsletter (PEN) provides an open conduit of news and announcements across the professional community of planetary science and related disciplines. It distributes messages from NASA officials, meeting announcements, job announcements, and submissions of news regarding or impacting solar system exploration, upcoming mission events, policy issues, and editorials. The PEN is distributed nominally once a week, although there are times when volume or events will require more frequent PEN distributions. The PEN website also hosts an extensive and up to date calendar for planetary meetings, conferences and workshops around the world. Subscribe today.