Hesperornis on the shoreline.

A Brief Guide to Birdwatching in the Age of Dinosaurs

Archaeopteryx and Hesperornis should be on the lists of any dino bird watcher.
A photograph from the Mars Perseverance rover, 2021

NASA’s Search for Life on Mars

It’s a rocky road for its rovers, a long slog for scientists—and back on Earth, a battle of the budget.
Tiny crabs and other sea life live next to a hot hydrothermal vent on the ocean's floor.

The Ocean Vents Where Life on Earth Likely Began

In a recent paper, biologists outlined a three-part hypothesis for how all life as we know it began.
Astronomical diagram of the seasons and signs of the zodiac, c. 1860

Earth Isn’t the Only Planet With Seasons

But they can look wildly different on other worlds.
Andromeda Galaxy

100 Years after the “Great Debate”: How Edwin Hubble Expanded the Cosmos

In 1924, Edwin Hubble found proof that the Milky Way isn't the only galaxy in the Universe.
Eoneophron infernalis

A Fresh Hell (Chicken)

A newly identified “Hell chicken” species suggests dinosaurs weren’t sliding toward extinction before the fateful asteroid hit.
An illustration of a globe being heated over a fire on a spit

Grilling the Globe

Could meat taxes help to curb over-consumption of beef and mitigate climate change?
Dramatic skies over the Arenal Volcano, Costa Rica

Central American Volcanoes Offer Clues to Earth’s Geological Evolution

Along 1,100 kilometers, from Mexico to Costa Rica, lies the Central American volcanic arc, where the variety of magma types make for a geological paradise.
two tyrannosaurus rex fighting on a yellow colored background

Five Things You Probably Have Wrong about the T. rex

How well do you really know Tyrannosaurus rex, the so-called Tyrant Lizard King?
An illustration of seven Earth-size planets orbiting the TRAPPIST-1 star

Why TRAPPIST-1 Is Our Favorite Alien Planetary System

The TRAPPIST-1 system is a treasure trove of possibilities and questions. Observations by JWST have just begun.