Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

The conventional explanation for the moon's formation is that an enormous rock smashed into the nascent Earth and created it as a result. A new theory challenges the particulars of how events may have ...

New study provides clearer insight into how the Moon formed and why its materials closely resemble those of Earth.

Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the ...

Because the Earth is doing the work of increasing the Moon's momentum, the Earth's rotation slows down in turn, as its momentum goes to the Moon. To put it another way, as the Moon's orbital momentum ...

Tides come from a difference in gravity across an object. The force of gravity exerted by the Moon is about 4% stronger on the side of Earth that faces toward the Moon, compared to the opposite side ...

Today, Earth’s moon is uninhabitable and does not contain a trace of life. It does not have much of an atmosphere, a drop of ...

What can ancient moon rocks tell us about the origins of Earth, the future of space travel, and even the water we drink? At Case Western Reserve University, professor and geochemist Jim Van Orman is ...

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an internal ocean? This is what a recent study presented at the 56th Lunar and ...