Seleucus of Seleucia was an ancient astronomer who defended heliocentrism, arguing that Earth orbits the Sun and rotates on ...

While many are still basking in the afterglow of the total solar eclipse on April 8, 2024, a lunar eclipse is about to have ...

The shape of Earth’s shadow projected across the face of the moon confirmed that Earth was round, and the duration of the ...

The shape of Earth’s shadow projected across the face of the moon confirmed that Earth was round, and the duration of the ...

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) ...