Cards on the table
In the 1860s, a Russian teacher laid the foundation for chemistry’s most recognised matrix.
Up in the air
How a solar eclipse led to the discovery of helium.
Salve from the soil
Streptomycin saved countless lives, but its October 1943 discovery by a PhD student at Rutgers was mired in a bitter battle.
Strokes of life
A German illustrator and naturalist laid the foundation for modern entomology.
Sky full of stars
Tycho Brahe spotted celestial bodies before the advent of telescopes.
