Life as we don’t know it
Why should Mars, Jupiter, and Saturn get all the attention?
Our estimates for the prevalence of life in the universe depend on how quickly it arose on Earth.
Humans may have one thing that advanced aliens don’t: consciousness.
From the Europan oceans to the Jovian clouds, life has plenty of places to hide.
When we find ET, which faiths will bend, and which will snap?
At the cosmic dinner party, intelligence is the loudest thing in the room.
Alien life could be so advanced it becomes indistinguishable from physics.
The intricate compatibility of water and life on Earth may not extend to other planets.
Life on other planets may rely on plate tectonics.
The science of bacteria in the atmosphere is getting its moment in the sun.
Colonizing the galaxy is the highest good humanity could achieve.
Absent signs of life, astronomers are starting to look for extraterrestrial nuclear wars and pandemics.
We have ethical and aesthetic reasons to leave Mars alone.
Extraterrestrial war: what is it good for?
This woman has the best job in the inner solar system.
The chemistry of life is an extension of the chemistry of the Earth.