Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

At a time when the passage of time was dictated by the movement of the sun and the seasons, the introduction of “clock time” ...

Synthetic cells could mimic the first sparks that led to our existence. Several Dutch institutions are working together to ...

Tuesday marks the tenth anniversary of a huge astronomical milestone: the first and only time we have landed on a comet. The ...

During Medieval times Christian theologians accepted the Ptolemaic earth centered Greek ... Since meteorites are remnants of our early Solar System, the findings raise the possibility that stars ...

Ptolemaic pharaohs constructed much of this ... that Aristarchus posited a heliocentric solar system and Eratosthenes calculated the circumference of the Earth. Alexandria was where the Hebrew ...

The Ptolemaic system, his geocentric model of the universe, prevailed in the Islamic world and in medieval Europe until the time of Copernicus. Volume 1 appeared in two parts. Part 1 (1898) contains ...

Yet an effort by the pope to slow the public acceleration of Galileo’s scientific theories, introduced in Galileo’s book comparing the Copernican system with the accepted and less truthful Ptolemaic ...

What the movie does not do, though, is explain where the word "conclave" comes from, and how the mysterious system was ...

They insisted that the solar system rotated around the earth ... outdated paradigm. Like the Ptolemaic geocentric model of the heavens, it sufficed for some time. But the strategic seascape ...

A mathematician and astronomer of the Renaissance period, Copernicus proposed that the Sun was the center of the solar system ...