Planning a trip to Arizona? Here are 12 must-see attractions, from the Grand Canyon to Monument Valley, and other ...

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

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 ...

A new study reveals that the largest lunar crater, South Pole-Aitken basin, was formed by an oblique impact that shaped the ...

The impact that carved out the South Pole-Aitken basin on the moon appears to have come from the north, not the south as previously thought – and NASA’s upcoming mission could investigate further ...

A crater on Mars has a bright patch of ice. It's the second time in over a decade that the crater and ice has been observed ...

A massive crater hidden beneath the Atlantic seafloor has been confirmed as the result of an asteroid strike from 66 million ...

The moon's heavily cratered surface serves as a testament to how Earth's closest celestial neighbor has become a figurative magnet for space rocks during its 4.5 billion-year history. One of the best ...