50 Years Ago
- Earth
50 years ago, scientists dug into Pangaea’s past lives
In 1972, scientists wondered whether Pangaea was Earth’s only supercontinent. Fifty years later, we know it wasn’t the first and it won’t be the last.
- Particle Physics
50 years ago, physicists got a whiff of what glues together protons
In 1972, particle smashups hinted at the gluon, which we now know not only holds together the innards of the proton, but also makes up more than a third of its mass.
- Tech
50 years ago, genes eluded electron microscopes
In the 1970s, scientists dreamed of seeing genes under the microscope.
