On Aug. 21, 1914, a total solar eclipse temporarily darkened skies across Europe and Asia. A young German astronomer and ...

Today in the history of astronomy, the outbreak of WWI derails eclipse research.

And then the 1919 eclipse happened. During a total solar eclipse, the moon orbits directly in front of the sun, completely blocking the light from the sun's disk.

In 1916 Albert Einstein published a new theory of gravity, which we now call the the General Theory of Relativity. However, although it relied on wildly different mathematical underpinnings than ...

Negative photo of the 1919 solar eclipse taken from Príncipe Island. The position of the stars that were examined in the historic test of Einstein's theory of gravity are marked in this photo.

Why this eclipse could really show Einstein was correct Five telescopes. Four and a half minutes. One shot at getting data from the total solar eclipse.

Images of stars taken during a total solar eclipse on May 29, 1919 confirmed predictions of Einstein’s newly proposed “theory of general relativity,” and launched the beginning of a new era ...

But during a total solar eclipse it’s dark and the sun is still up in the sky. English astronomer, Sir Arthur Eddington, traveled to western Africa in 1919 to test Einstein’s theory during an ...

Einstein put out his theory at the end of 1915, and the next total solar eclipse occurred just months later, on February 3, 1916. There was no time to organize an expedition on such short notice ...

During the eclipse, astronomers will reproduce the 1919 experiment that confirmed Einstein’s general theory of relativity.