The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

How the Moon formed may have just fallen back into the ... That's not to say that an impact couldn't have been involved; one model suggests that an impact pulverized the whole kit and kaboodle ...

The study suggests that the existing model for the formation of Earth’s moon doesn’t perfectly apply to Pluto and Charon. Pluto and Charon are smaller and colder. These are composed of rock ...

Now, scientists have come up with two new models that explain how an impact could have resulted in a moon formed from Earth material. In one model, Robin Canup, an astrophysicist at the Southwest ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

(CNN) — About 3.8 billion years ago, two massive canyons likely formed on the moon in a span of less than 10 minutes, according to new research. The extraordinary formations, each comparable in ...