Sean Raymond
Intelligent Life May Be Hiding in the Moons
Why exomoons could sustain ET as well as any exoplanet
When Earth Had Rings
A new way of thinking about the history of the Earth.
The Origin of the Asteroid That Killed the Dinosaurs
The story of the doom-bringing rock may help us prevent a repeat catastrophe.
The Stars Foretell Our Doom
Post-apocalyptic star systems could reveal the fate of our own.
Where Earth Got Its Water
A new theory shows Earth’s water was more locally sourced than ever thought before.
The Dwarf Planet on Our Doorstep
The series of fortunate astrophysical events that gave us Ceres.
A Step-by-Step Guide to Our Solar System’s Demise
First the oceans boil off. Then things really get serious.
Were It Not for Cosmic Good Fortune, We Wouldn’t Be Here
Why Earth wasn’t swept into the dustbin of space.
We Were Here
How advanced civilizations could leave us a message of their presence.
The Moon Is Underrated
New research hints at what makes Earth’s moon special.