Earth’s Rock Record Could Reveal the Motions of Other Planets
Studying the layers of Earth’s crust, scientists have created a “Geological Orrery” to measure planetary motions dating back hundreds of millions of years
In Addition to Testosterone, Another Hormone Is Vital for Early Male Development
A hormone called androsterone, produced in the placenta and other organs, plays a role in fetal development in the womb
How 18th-Century Writers Created the Genre of Popular Science
French writers such as Voltaire and Bernard le Bovier de Fontenelle helped shape the Enlightenment with stories of science
Should the Himalayan Wolf Be Classified as a New Species?
Years of expeditions in the world’s tallest mountain range reveal that Himalayan wolves have developed genetic adaptations to living at high altitudes
The 17th-Century Astronomer Who Made the First Atlas of the Moon
Johannes Hevelius drew some of the first maps of the moon, praised for their detail, from his homemade rooftop observatory in the Kingdom of Poland
The First Female Student at MIT Started an All-Women Chemistry Lab and Fought for Food Safety
Ellen Swallow Richards applied chemistry to the home to advocate for consumer safety and women’s education
Why Did Humans Lose Their Fur?
We are the naked apes of the world, having shed most of our body hair long ago
What’s New, and What’s Not, in the Reported Birth of the CRISPR Babies
Editing human DNA, either in embryos or in cells that are reintroduced to the body, had come a long way before Lulu and Nana were born
Scientists Measure the Second With Record-Breaking Precision
A new generation of optical clocks are becoming ever more reliable as physicists work to redefine time
The Fierce T. Rex Was a Walker Not a Sprinter
A heart-pounding scene of the hit film “Jurassic Park” depicts a fearsome Tyrannosaurus Rex chasing scientists in a Jeep and nearly catching them. But in reality, the infamous T. rex would have broken its legs trying to move anywhere near that fast, new research suggests.