Seleucus of Seleucia was among the first to argue for heliocentrism, supporting Aristarchus’ model of the Sun-centered universe. Credit: Wikimedia Commons, CC BY 4.0 Seleucus of Seleucia was a ...

A robotic excavator could build a dry stone wall to act as a blast shield around a launch pad on the moon, a new study suggests.

Seen here is the young, bright Aristarchus crater on the Moon about the size of a large city. The 40 kilometers diameter Aristarchus crater, as seen by Credit: NASA Lunar Reconnaissance Orbiter (LRO) ...