The ancient Greek astronomer Hipparchus discovered the precession of the equinoxes, invented the stellar magnitude scale, discovered a nova, and made accurate planetary observations. He also compiled ...

The ancient Greek astronomer Hipparchus catalogued the coordinates of the stars. Now, his efforts have finally been uncovered. This cross-fade montage shows a detail of the palimpsest under ordinary ...

At SLAC National Accelerator Laboratory in Menlo Park, scientists from across the globe are using advanced X-rays to find a long-lost map of the galaxy by ancient Greek astronomer Hipparchus.

In a monastery library on the Sinai Peninsula, a devotional handbook by the monk John Climacus sat quietly for centuries ...

Fragments of a star catalog from the second century B.C. have turned up in a manuscript that had been erased and written over centuries later. A new analysis of the religious manuscript shows that the ...

Add Yahoo as a preferred source to see more of our stories on Google. Scholars discovered the oldest known star map beneath the text of a Christian manuscript, according to new study. The long-lost ...

Researchers used multispectral imaging to reveal the hidden text (which is traced in yellow above). Courtesy of the Museum of the Bible Collection. All rights ...

The Greek astronomer Hipparchus is often called the “father of astronomy.” He’s credited with discovering the Earth’s precession (how it wobbles on its axis) and calculating the motions of the Sun and ...

It is immediately obvious to anyone who looks at a starry nighttime sky that the stars are not all of the same brightness. Some stars are very bright and prominent; other stars are very dim and cannot ...

Researchers believe they may have found a fragment of a long-lost star map compiled by the ancient Greek astronomer Hipparchus, who made the earliest known attempt to chart the entire night sky. In a ...