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.
A Fresh Hell (Chicken)
A newly identified “Hell chicken” species suggests dinosaurs weren’t sliding toward extinction before the fateful asteroid hit.
Grilling the Globe
Could meat taxes help to curb over-consumption of beef and mitigate climate change?
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.
Five Things You Probably Have Wrong about the T. rex
How well do you really know Tyrannosaurus rex, the so-called Tyrant Lizard King?
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.
Ancient Black Hole Challenges Our Understanding of the Early Universe
The Big Bang theory is not threatened, but astrophysicists have some explaining to do.
How Earthquakes Helped Us Map the Interior of the Sun
Temperatures in the Sun’s core exceed 10 million degrees Celsius. But how on Earth did we actually come to know that?
The Hunt for Life in Alpha Centauri
This oddball system of three stars might be our best chance at finding nearby life in the Universe.