| They seem to have been badly ravaged by micrometeorites and are somewhat high in radiation, so I doubt that a trip would be worth while. |
| American space agency Nasa hopes the device will be the first of a generation of tiny machines designed to plug holes in spacecraft made by micrometeorites. |
| Presumably these elements are either supplied continually by micrometeorites or are liberated from the surface under the influence of solar radiation or meteorite impact. |
| Such covered spaces would protect living organisms from the sun's ultraviolet rays and from micrometeorites, which shower down on Mars like a continual rain. |
| Some are impacts from micrometeorites coming from the birth of the Solar System, and some can be attributed to paint flakes from spacecraft or other space debris. |
| Ask me sometime how they keep it from hazing with normal cosmic dust and micrometeorites. |
