Ron Cowen is a freelance astronomy and physics reporter based in Silver Spring, Maryland. He’s the author of Gravity’s Century: From Einstein’s Eclipse to Images of Black Holes (2019, Harvard Press)
The Eclipse That Made Einstein A Worldwide Celebrity
100 years ago, scientists shared their observations of how the sun’s mass bent starlight—an announcement that made Einstein an overnight celebrity.
The Eclipse That Proved Einstein’s Theory Correct
In 1919, a team of astronomers presented their findings about warped starlight to the Royal Astronomical Society in London, proving Einstein’s theories.
Colossal Quasar Clump Too Huge to Exist, in Theory
Astronomers have discovered a clump of 73 quasars spanning four billion light years at its widest point — that’s like 40,000 Milky Way galaxies lined end-to-end.