Venus Was Never Habitable
October 13, 2021
Venus has bad news and bad news: it was never earthlike, and models to determine its habitability are unreliable.
Mars Life Hopes Reduced
August 12, 2016
Key assumptions about habitability on Mars have fallen, but astrobiologists try to keep hope alive.
Earthbound Martians Go Nuts
December 2, 2014
How 90,000 Earthlings sent greetings to imaginary friends on Mars, and other Martian nuttiness.