Jillian Scudder
The Shiniest Planet Has Clouds of Metal and Glass
This exoplanet’s sun should have obliterated its atmosphere. It's still going strong.
Saturn’s Rings Could Be Younger Than Flowers
We’re lucky that a relatively recent catastrophe created the gas-giant spectacle.
The Moon Smells Like Gunpowder
Why dirt on the moon (and Mars) would be dangerous to live with.
