Natural satellite

The planet Saturn is seen backlit by the sun, as seen from the Cassini spacecraft on July 19, 2013.

Saturn shows us how a moon might be born

Environment

Scientists thought the solar system’s planets all had the moons they were going to have — but Peggy challenges that very notion. Peggy appears to be a new moon for Saturn, emerging from the rocky debris that makes up the planet’s famous rings.

The planet Saturn is seen backlit by the sun, as seen from the Cassini spacecraft on July 19, 2013.

Saturn shows us how a moon might be born

Environment

The First Commercial Flight to the Moon

The Living on Earth Almanac

Moons & Money