Fig. 1. Locations of samples returned from the Moon. Model ages of mare deposits [1] were based on superposed crater densities and the Neukum crater chronology [23]. The Moon had a much higher impact ...
Asteroid 2024 YR4 will not hit Earth, but it has forced planetary defense experts to confront a different kind of worst case: a significant chance that a “city killer” rock could slam into the Moon ...
What if the most spectacular sky show of the century came with a very down-to-Earth problem for your GPS, your weather app, even the satellites that track climate change? That is the puzzle scientists ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results