The universe follows predictable rules, behaving classically according to Einstein’s theory of general relativity. So, what ...

Scientists propose a new theory to solve the Hubble tension. The universe might be rotating very slowly. Istvan Szapudi suggests this cosmic spin could explain inconsistencies in expansion ...

In it, he challenges centuries-old science based on the teachings of Aristotle and Ptolemy, who thought the Earth was at rest at the center of the universe with other planets, including the sun ...

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 ...

Edwin Hubble’s photo; Martellus’ world map; Copernicus’ diagram of the solar system.

RIMOWA marks the latest chapter in their long partnership with the arts by asking Ptolemy Mann, known for her fiber works, to collaborate.

Greek astronomer Aristarchus’ heliocentric theory was not recognized in his time. Great ancient scientists and philosophers, such as Pythagoras, Aristotle, and Ptolemy, were strong supporters of the ...

A theory known as non-singular matter bouncing cosmology suggests that the universe “bounces” between a hot big bang era and the kind of universe we see today.

Ptolemy's original 2,000-year-old treatise in Greek was overwritten with an unrelated text in Latin. Using modern imaging, scientists were able to uncover a hidden manual.

A new paper published in December of 2023 suggests a novel idea that our universe is absorbing baby universes—and was even absorbed itself in its early years.