facilities on the moon. The advanced technology should be tested by obtaining scientific results at each stage of development.

• NASA should initiate science and technology development so that facilities can be deployed as soon as possible in the lunar program. The NASA office responsible for space exploration and technology should support the long-term development of technologies suitable for possible lunar observatories.

• Site survey observations from the Lunar Observer(s), possibly with soft landed experiments such as a small transit telescope, should be a high priority for a lunar program. The requirements for astronomical observations should be carefully considered in the selection of the site for a lunar base.

Multiwavelength (ultraviolet to infrared) observations with a large (16-m-class) telescope and infrared observations with a large, cold infrared telescope in a polar crater, or radio observations from the far side of the moon could offer unprecedented capabilities for astronomy. These projects are, however, formidable technical challenges.

• NASA should develop the technology necessary for constructing large telescopes and should investigate which of these facilities are best placed in earth orbit and which are best placed on the moon.

• NASA, along with other governmental and international agencies, should strive to have the far side of the moon declared a radio-quiet zone.