A chunk of space rock that visited near Earth's orbit last year was widely called a "mini-moon," a nickname that was more appropriate than thought.

A new study has uncovered evidence that the moon is still geologically active, contradicting previous beliefs that its ...

Data from the seismographs the astronauts installed on the surface and from measurements of the Moon’s gravity field made in orbit showed that it had only a very small iron core, if it has one ...

Close to the moon's south pole are two canyons each comparable in size to the Grand Canyon that were born in a much different process. This impact unleashed about 130 times the energy of the ...

According to a chart published by the International Occultation Timing Association, Mars will disappear behind the moon on Monday at 6:21 p.m. in Seattle, 9:16 p.m. in Washington, D.C., and 9:21 p ...

Neil Armstrong thought he had a 50–50 shot at pulling it off. "There are so many unknowns," the first man to set foot on the moon said in a 2011 interview with an Australian accounting firm.