Handwriting analysis determined that the famed astronomer made notes in this copy of the ancient Greek text in the 1590s, decades before his own observations via telescope revolutionized our ...

Lost notes reveal Galileo closely studied the ancient Greek astronomer Ptolemy, offering fresh insight into his early ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Fragments of one of the first-ever star catalogues—created ...

Add Yahoo as a preferred source to see more of our stories on Google. Image Credit: Shutterstock. Long before anyone could download a stargazing app or buy a telescope from a department store, ancient ...

The star catalog was made by ancient Greek astronomer Hipparchus around 162 and 127 BCE, 1,400 years before the telescope. By Laura Baisas Published Oct 20, 2022 1:00 ...

Members of the Case Western Reserve University community are invited to hear from Kelsey Johnson, professor of astronomy and director of the Echols Scholars Program at the University of Virginia, at ...

An ancient book on astronomy from the 1500s sold for more than £10,000 ($12,200), as a "private international buyer" triumphed over intense competition at a U.K. auction. The Castle of Knowledge by ...