In 155 BC, three Greek philosophers visited Rome after being invited to share knowledge and accomplishments in their respected fields of interest.

Aristarchus of Samos (310 BCE – ca. 230 BCE) of Samos... ancient Greek astronomer and mathematician who... first... placed the Sun at the center of the known universe with the Earth revolving around it.... His astronomical ideas were often rejected in favor of the geocentric theories of Aristotle and Ptolemy. | Abridged from http://en.wikipedia.org/wiki/Aristarchus_of_Samos

Brighten your day with the most illuminating Sun facts on the Web. Even the most devoted heliomaniac will discover something new about our beloved yellow star.

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Discover how Aristarchus of Samos proposed a revolutionary heliocentric model 1,800 years before Copernicus. Learn about his groundbreaking ideas! Read here;

12 mathematicians from antiquity through the 18th century who developed the core of mathematical thought.

It's funny, but not all the scientists we talk about on this website are actually famous. Some of them, like Aristarchus, deserve to be... but they're not. If you're looking for an unsung hero of science, you could do worse than Aristarchus of Samos, or Aristarchus the Mathematician as some people called him. Today, a

Pre-Socratic Philosophers in ancient Greece advanced a non-theistic view of the universe. Introduction Aristarchus of Samos (l. c. 310

Aristotle and Aristarchus of Samos