Looking for Life on Mars
An astrobiologist and a director on the joys and challenges of filming space science.
The Forgotten Planets
Why should Mars, Jupiter, and Saturn get all the attention?
Space Colonization and the Meaning of Life
Colonizing the galaxy is the highest good humanity could achieve.
Maybe We Haven’t Seen Any Aliens Because They’re All Dead
Absent signs of life, astronomers are starting to look for extraterrestrial nuclear wars and pandemics.
The Argument Against Terraforming Mars
We have ethical and aesthetic reasons to leave Mars alone.
What Military Theory Tells Us About Future Space Warfare
What is it good for?
Of Rings, Geysers, and Plumes
This woman has the best job in the inner solar system.
The Primordial Fertility of Rock
The chemistry of life is an extension of the chemistry of the Earth.