As astronauts prepare for south-polar landings, a new look at the Moon’s biggest crater points to a pivotal moment in lunar history—and to the rocks you’ll want sampled next. A study led by Jeffrey ...

Solving a lunar mystery? Scientist at the University of Arizona is the lead author on research proposing a new theory for the moon's unlikely origins.

The Moon has always held a certain mystery, especially its far side, hidden from Earth’s view. While telescopes and astronauts have revealed much about its surface, recent research has uncovered ...

U.S. astronauts who return to the moon’s surface in the years ahead for the first time in more than half a century will have the difficult and unprecedented task of setting the stage for a permanent ...

Two of Arizona's most famous landmarks may be linked by cosmic violence: the asteroid that gouged out Meteor Crater may have also caused the formation of an ancient lake in the Grand Canyon. This ...

The 21 shocked and unshocked zircon crystals dated in this study were separated from this ~30 cubic centimeters of unconsolidated late Eocene sediment obtained from Ocean Drilling Project site 1073, ...

Scientists in China have confirmed the discovery of the largest known impact crater formed on Earth during the Holocene period, which began around 11,700 years ago. The Jinlin impact crater, located ...

As astronauts prepare for south-polar landings, a new look at the Moon’s biggest crater points to a pivotal moment in lunar history—and to the rocks you’ll want sampled next. A study led by Jeffrey ...

American astronauts who return to the moon’s surface in the years ahead for the first time in more than half a century will have the difficult and unprecedented task of setting the stage for a ...