Earth Might Have Had a Ring 466 Million Years Ago
Impact craters found around the Earth that were made around the same time could be linked to debris falling from a ring, a ...
Life might thrive on the surface of Earth for an extra billion years
The sun is midway through its life of fusion. It's about 5 billion years old, and though its life is far from over, it will ...
Celebrate the first day of fall with this gorgeous animation that shows how the Earth changes with the seasons
See how our seasons come from Earth's tilt and yearly loop around the sun, which changes the ice cover, vegetation, and ...
Our Taste for Flesh Has Exhausted the Earth
More than almost anything else we put into our mouths, meat matters. What flesh we eat — or forsake — tells the world who we ...
A record of the Earth’s temperature covering half a billion years
The results, which the researchers call PhanDA, estimate global temperatures over the last 485 million years, going back to ...
New book details how life created the Earth as we know it
Life made the modern Earth as much as the Earth made life, a new book by a philosopher of consciousness argues. That dynamic ...
Smithsonian Magazine1d
Did Earth Once Have a Ring Like Saturn? Geologists Find Evidence for a Halo of Orbiting Space Rocks 466 Million Years Ago
A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...
Study charts how Earth's global temperature has drastically changed over the past 485 million years, driven by CO₂
A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth's ...