Alien replies to NASA's spacecraft signals might reach us by 2029

Here’s All the Rocks We Hauled Back From the Moon - The 12 human beings who walked on the Moon collected, catalogued and returned 842 pounds of lunar rock and soil. Each sample has been meticulously documented in NASA's Lunar Sample Catalog.

Fish thought to help reefs have feces that's deadly to corals

AHA Rates 10 Popular Diets: What’s Best for Heart-Healthy Eating – And What Misses the Mark