Eoraptor lunensis lived roughly 230 million years ago, at a time when dinosaurs were small and rare.

Growing Quickly Helped the Earliest Dinosaurs

Rapid growth also helped other ancient reptiles flourish in the aftermath of mass extinction.
An image of Enceladus assembled using infrared, green, ultraviolet, and clear filtered images taken by Cassini on July 14, 2005

Saturn’s Ocean Moon Enceladus Is Able to Support Life

This research team is working out how to detect extraterrestrial cells in the liquid water ocean hidden beneath Enceladus’s icy crust.
IceCube Neutrino Observatory in 2023

IceCube Detector Confirms Deep-Space “Ghost Particle” Phenomenon

IceCube scientists have detected high-energy tau neutrinos from deep space, suggesting that neutrino transformations occur not only in lab experiments but also over cosmic distances.
Looking northwards in the Isle of Skye Scotland

Surprising Discovery Challenges Key Principle of Modern Cosmology

Observations of an enormous cosmic structure, dubbed the "Big Ring," seem to violate the Copernican principle.
Mount Okmok, Alaska

Beware the Volcanoes of Alaska (and Elsewhere)

The 43 BCE eruption of Alaska’s Okmok volcano created the (cold) climate context for the fall of the Roman Republic and the birth of the Roman Empire.
J. Robert Oppenheimer

The Annotated Oppenheimer

Celebrated and damned as the “father of the atomic bomb,” theoretical physicist J. Robert Oppenheimer lived a complicated scientific and political life.
Artist's impression of ʻOumuamua

Why Interstellar Objects Like ʻOumuamua and Borisov May Hold Clues to Exoplanets

The detection of two celestial interlopers careening through our solar system has scientists eagerly anticipating more.
Eoneophron infernalis

A Fresh Hell (Chicken)

A newly identified “Hell chicken” species suggests dinosaurs weren’t sliding toward extinction before the fateful asteroid hit.
A deep image from the Dark Energy Survey showing the field covered by one of the individual detectors in the Dark Energy Camera.

Astronomers Use AI to Shed Light on Dark Energy

A new measurement offers insights on the density of the mysterious force driving the Universe’s expansion.

Doing Math with Intellectual Humility

Math class is an opportunity to teach students both how to use conjecture to arrive at knowledge and how to learn from the logic of peers.