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 ...

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) ...

In fact, all craters with bright ejecta (Tycho, Aristarchus, etc.) are part of the Copernican period, the lunar time period starting from the formation of crater Copernicus about 800 million years ago ...