The composition of Antarctic micrometeorites and other tiny but precious rocks such as those from space missions--is really hard to analyze without some sample loss. But a new technique should make it ...

The composition of Antarctic micrometeorites and other tiny but precious rocks such as those from space missions--is really hard to analyze without some sample loss. But a new technique should make it ...

The last time anyone set foot on the moon, in 1972, astronauts plunged metal tubes into the lunar ground. They captured soil and rock and then sealed off the precious extraterrestrial material. One of ...