Planetary scientists analyzing oxygen isotopes in lunar soil from the Apollo mission sites conclude that meteorite bombardment over 4 billion years could only have delivered a tiny fraction of Earth’s ...

NASA research using Apollo lunar regolith data refines the Moon’s impact record and places limits on meteorite contributions to Earth’s water over geologic time.

At the moon's north and south poles, permanently shadowed craters remain so cold that water ice and other frozen compounds can persist for billions of years. Scientists think these ancient deposits ...

How nutrients from Europa's icy shell reach its ocean has been unclear despite several theories.

The next astronauts to fly around the Moon went into quarantine late on Friday. (Jan 23). The procedure indicates that ...