Lord Rosse's Great Reflecting Telescope, at Parsonstown, Ireland

Leviathan Resurrected: Illustration and Astronomy

In the 1840s, the Leviathan of Parsonstown, built by William Parsons, third Earl of Rosse, became the largest telescope in the world.

In the Stereoscope, Another World

Developed in the nineteenth century, the stereoscope gave people a new way of seeing themselves and the world around them.
A flat boulder raised on a pinnacle of ice, by Louis Haghe after J.D. Forbes

How Sports Shaped Glacier Science

The heroic masculinity that governed early glacial science had its roots in nineteenth-century British sporting culture.
Peer review illustration

The History of Peer Review Is More Interesting Than You Think

The term “peer review” was coined in the 1970s, but the referee principle is usually assumed to be as old as the scientific enterprise itself. (It isn’t.)
The eclipse of Agathocles

How Astronomers Write History

Scientists’ approach to dating past eclipses changed when they stopped treating classical texts as authoritative records.
From Remarks on the new comet. In a letter from William Herschel to Charles Blagden

Caroline Herschel Claims Her Comet

Couching her petition in a mix of modesty and expertise, Herschel became the first woman to have a scientific paper read to the Royal Society of London.
John Tyndall's setup for measuring radiant heat absorption by gases

How 19th-Century Scientists Predicted Global Warming

Today’s headlines make climate change seem like a recent discovery. But Eunice Newton Foote and others have been piecing it together for centuries.
An empty turtle shell

Turtle Shells: More Than Meets the Eye

Turtle shells evolved over time from earlier precursor structures.
Vintage engraving of the Dodo

Warty Pigeons, Dodos, Giant Tortoises, and More: The Extinct Wildlife of Mauritius

Newly discovered Dutch manuscripts describe the extinct wildlife of Mauritius Island.