whether that’s rock, brick, or pavement, provide almost perfect germination conditions. They keep the seeds dark, warm, and moist in the soil, shaded from the sun. The roots are protected ...

The heavy machinery only allows particles smaller than three-eighths an inch to fall through, separating rocks, sticks and ... before it turns into fine, dark dirt. It can be sold as is or mixed ...

Researchers discovered the rocks resembled the chemical composition of soil collected from corner of the Sea of Tranquillity visited by the Apollo 11 astronauts. The dark Mare regions, or "seas ...

The idea is that a mile of dirt and rock, a giant tank ... that zip around — and through — all of us every day. But dark matter particles, scientists think, can avoid all those obstacles.