NASA is inviting the public to send their portrait into space aboard one of the two remaining space shuttle flights. To participate, upload your picture to a NASA website:
http://faceinspace.nasa.gov You can select which space shuttle to fly -- Discovery in September or Endeavor, targeted for November. You can also just fly your name, without a photo.
After the flight, participants can download a special certificate.
A map on the website keeps track of submissions. By Tuesday afternoon, some 27,000 people worldwide had entered their photos -- more than 10,000 in the U.S., 500 in Spain and one in Cambodia.