Did a comet wipe out the dinosaurs?
About 66 million years ago a massive chunk of rock slammed into Earth in what is the modern-day Yucatan Peninsula.
The impact extinguished about 75%...
Venus was once more Earth-like, but climate change made it uninhabitable
We can learn a lot about climate change from Venus, our sister planet.
Venus currently has a surface temperature of 450℃ (the temperature of an...
What killed the dinosaurs and where did it come from?
It forever changed history when it crashed into Earth about 66 million years ago.
The Chicxulub impactor, as it's known, left behind a crater off...
To figure out how dinosaurs walked, start with how they didn’t
Paleontologists have made great strides in understanding how extinct animals like dinosaurs walked, ran, swam and flew when they were alive—but much about the...
How tiny plants changed the planet, 488 million years ago
Nearly 500 million years ago, Earth's lowland landscapes were dominated by vast sandy, gritty plains.
They then underwent a major, irreversible change, after which these...
Women’s menstrual cycles synchronize with moon cycles, study shows
In a new study, researchers used scientific methods to examine the connection between lunar and women's menstrual cycles.
They suggest that in ancient times, human...
Baby tyrannosaurs were only the size of a Border Collie dog, shows study
They are among the largest predators ever to walk the Earth, but experts have discovered that some baby tyrannosaurs were only the size of...
Scientists find lots of water in the world’s most explosive volcano
There isn’t much in Kamchatka, a remote peninsula in northeastern Russia just across the Bering Sea from Alaska, besides an impressive population of brown...
First people to enter the Americas likely did so with their dogs
The first people to settle in the Americas likely brought their own canine companions with them, according to new research which sheds more light...
Where did Earth’s nitrogen come from?
New study reveals two distinct sources of life-essential element on Earth.
Where did Earth's nitrogen come from?
Rice University scientists show one primordial source of the...