How Earth Cleans Itself
April 21, 2023
Scientists are surprised at new findings showing automatic cleanup of air and water.
Moon Losing Its Water
April 24, 2019
The moon loses more water than it receives from the solar wind or meteorites. How long has that been going on?
Dust a Major Problem on Non-Earth Worlds
February 28, 2018
You can't just beam down to a planet and start walking around. That dust under your feet can cause major problems.
Of Molecules and Men
September 27, 2014
Atoms and molecules are tiny but can have a big influence on the habitability of planets and astrobiologists' theories about them.