Neolithic engineers built megalithic monuments with stones weighing as much as two jumbo jets

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Each of the 32 colossal stones that make up the Menga Dolmen, a 5,600-year-old megalithic monument in southern Spain, is many times larger than the largest megaliths of Stonehenge, the most famous Neolithic wonder. Embedded … Read more

Scientists are growing crops with salt water that could save us from starvation

The SaliCrop team from left to right: Oron Bet Or, Carmit Oron, Ṛcā Godbole, Sharon Devir, Shimon Rachmilevitch.Guy Shery An agricultural technology company has developed an army of resilient crops by growing them with salt water. These crops are better at surviving saline soils, which is a growing problem in our warming world. Salt-ravaged soil … Read more