An alchemist in his laboratory. Oil painting by a follower of David Teniers the younger.

When Did Alchemy End?

Despite royal prohibition, transmutation efforts continued underground long after the widely accepted dates for their demise.

A Natural History of Dragons

Dragons began life as snakes, but natural historians gradually began describing them in more fantastical ways.
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.
Mt. Ontake spews volcanic ash on September 28, 2014 in Otaki, Japan

After the Volcano Erupts

The catastrophic eruption of Japan’s Ontake-san allowed residents to reconsider and reinvent their relationships to the mountainous landscape.
An illustration of a bathysphere, 1934

The New Oceanography: More Remote and More Inclusive

The days of celebrity oceanographers romancing the deep are gone, and maybe that’s a good thing.
Colour lithograph of partial lunar eclipse by Etienne Leopold Trouvelot

Trouvelot’s Total Lunar Eclipse

Immigrant artist Étienne Léopold Trouvelot used his skills to accurately represent the details—and the sublimity—of our solar system.
Glowing ring of gas around central dark shadow of black hole Sagittarius A* at center of Milky Way

Black Holes R Us

The universe is full of black holes. Even the Milky Way has one, and we now have a picture of it. Don't panic, but it looks like a blurry glazed donut.
Spider-Man

The Real Science of the Multiverse

Explaining some of the mind-bending science behind the popular science fiction trope.
Collage of women astronomers

Eight Women Astronomers You Should Know

A guided tour of selected luminaries of astronomy, from Ancient Greece to today.
The Chiang Mai crocodile newt

The Quiet eDNA Revolution Transforming Conservation

The aquatic monitoring tool has powerful potential.