Astronomy

Why meteorites that hit Earth have less water than the asteroid bits brought back by space probes — a planetary scientist explains

Much of what scientists know about the early solar system comes from meteorites – ancient rocks that travel through space and survive a fiery plunge through Earth’s atmosphere. Among meteorites, one ...
cerebral-overload

NASA Finds Lunar Regolith Limits Meteorites as Source of Earth’s Water

A new NASA study of its Apollo lunar soils clarifies the Moon’s record of meteorite impacts and timing of water delivery.
Tech Explorist

Moon samples put new constraints on meteorites as Earth’s water source

For the Moon itself, the story is different. The Moon has far less water than Earth, but for such a dry world it’s important. Most of it lies frozen in dark polar craters, and these icy spots could ...

NASA study using 50-year-old Apollo Moon samples suggests Earth’s water may not have come from meteorites

A new NASA study using Apollo lunar soil samples challenges a long-held theory. It suggests meteorites were not the primary ...