Billions of years ago, so the theory goes, something around the size of Mars smacked into Earth, spewing a whole bunch of dirt into space that eventually coalesced to form the Moon. This is called the ...

Recent scientific modeling has proposed a fascinating theory about how Pluto captured its largest moon, Charon. The theory ...

According to researchers at NASA, the moon— and Earth— was part of a massive planetary collision with masses that were five-times the size of Mars. During this collision, the outer layers of the Earth ...

Over 4.2 billion years ago, the moon turned itself inside out to create the lunar surface that has become familiar to humanity. Most scientists would agree the moon was created around 4.5 billion ...

Linking analyses of the moon's gravity field with models of its earliest evolution, scientists tell a story of the moon turning itself inside out after it solidified from a primordial magma ocean. The ...

Recent seismic data analysis has confirmed that the Moon’s deep interior contains structures surprisingly Earth-like, ...

Scientists have shown how the freezing of a ‘slushy’ ocean of magma may be responsible for the composition of the Moon’s crust. The scientists, from the University of Cambridge and the Ecole normale ...

Seismic waves created by earthquakes as they travel through the planet's interior change speed and direction as they move through different materials. Things like rock type, density, and temperature ...

(CNN) – The moon may be 100 million years older than planetary scientists thought. The moon has long been thought to have formed roughly 4.35 billion years ago after a Mars-sized object collided with ...

A joint research team from the Institute of Geochemistry of the Chinese Academy of Sciences (IGCAS) and Shandong University ...

That timeline is based on analyses of lunar rock samples from NASA’s Apollo missions. But the new study suggests that the moon formed earlier — around 4.51 billion years ago — and then experienced a ...

The moon may be more than 100 million years older than some scientists previously thought, according to a new study. The research, published Wednesday in the journal Nature, challenges the ...