The phases of the moon are a consequence of its motion around Earth in relation to the geometry assumed with respect to the sun. To better understand how it works, let us, first of all ...

Thanks to the parallax effect, the Moon's relative motion in its orbit around Earth appears significantly faster than the movement of Mars in its orbit around the Sun. There are undoubtedly ...

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

En route to land on the moon, a spacecraft snapped views of Earth eclipsing the sun. The Blue Ghost lunar lander, built by ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an ...

A new moon occurs when the moon is directly between Earth and the sun, with its shadowed side pointing towards us. You can see a new moon when it crosses the face of the sun during a solar eclipse.

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

While a solar eclipse involves the moon passing between the sun and the Earth, casting a shadow across our planet, a lunar eclipse involves the Earth passing directly between the moon and the sun.

PT5, a near-Earth object discovered last year, has captivated scientists with its potential lunar origins. Likely ejected ...

in what’s called a quasi-satellite motion. Earth has seven known quasi-moons. Discovered in 2004, this quasi-moon shares a similar orbital path to Earth around the sun and is expected to stick ...