A new study indicates the collision of Theia and the Earth about 4.5 billions years ago might have created more than one moon ...

“While we find that there are no stable polar orbits around the Earth-Moon orbit with the current day semi-major axis, polar orbits were stable immediately after the formation of the Moon, at ...

Scott Manley is indicating that what I have been observing in the Barry-1 satellite orbital variance is not enough proof for the IVO quantum drive.

The last major lunar standstill happened nearly 20 years ago and experts believe this year’s could reveal exciting connections between ancient monuments like Stonehenge and the moon.

Does Stonehenge align with the moon as well as the sun? Archaeologists are using the major lunar standstill, a phenomenon that happens every 18.6 years, to investigate.

Around 4 billion years ago, an asteroid hit the Jupiter moon Ganymede. Now, a researcher realized that the Solar System's biggest moon's axis has shifted as a result of the impact, which confirmed ...

Learn how Earth's moon formed, how its orbit affects Earth's tides, why solar and lunar eclipses happen and the history of lunar exploration.

The remainder of the degree-2 topography is consistent with a frozen tidal–rotational bulge that formed later, at a semi-major axis of about 32 Earth radii.

In our solar system, a planet’s Hill sphere is dictated by its orbit (more specifically, its orbit’s semi-major axis — the long semidiameter of an oval), its mass, and the Sun’s mass.

Falling under the Aten category, such asteroids have a semi-major axis of less than 1 AU. NASA continually monitors these objects to predict potential threats and enhance planetary defense strategies.