"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

The story of how the Moon came to be has always carried a touch of mystery. Picture the young Solar System as a restless place where new worlds grew from swirling gas, dust, and rock. In that chaotic ...

Research into the formation of the moon was conducted by scientists at the Weizmann Institute of Science in Rehovot, Israel and the Technion-Israel Institute of Technology located in Haifa. Results of ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon ...

The moon was formed 4.5 billion years ago in a "giant impact" that left Earth with a two-hour day, according to new research. Scientists have long debated the circumstances which led to the formation ...

Scientists continue to explore the deep story of how Earth and the moon formed. One idea has gained attention because it pushes us to imagine the planet in its earliest and wildest days.

The moon's orbit isn't a perfect circle. Instead, it's more stretched out, kind of like an oval, which means its distance from Earth varies by about 30,000 miles (48,000 km). The surface of the moon ...

The largest and oldest crater on the moon did not form as we initially suspected, a new study suggests. The findings hint that a specific region of the lunar surface could be more scientifically ...