NASA chooses the landing site for its Mars 2020 rover mission
The rover will be looking for signs of habitable conditions and past microbial life
NASA plan for a “cloud city” made of airships floating over Venus (photos)
Somebody in NASA is big fun of "Star Wars: The Empire Strikes Back"...
At what point do we admit that geoengineering is an option?
Reducing carbon emissions is politically untenable and extremely expensive, so...