New research from HKU geologists suggests that Earth's first continents were born not from plate tectonics, but from deep ...

Have you ever wondered what our solar system looked like 3.8 billion years ago? Were the planets we know today anything like ...

"It is incredible that modern telescopic surveys have the ability to detect such small objects up to millions of kilometers ...

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond ...

The distance from the Moon to the Earth is unsurprisingly the same as from the Earth to the Moon, and the distance of each to the Sun is so similar that these can be ignored.

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 ...

Not only will Friday’s total lunar eclipse be a Blood Moon, but it also lands on Pi Day! Grab a blanket—it won’t be freezing, but it will be in the 40s.

A new video from the mission shows the Earth setting and rising behind the moon just after the spacecraft made its second lunar orbit maneuver. Earth rise, Earth set, repeat!

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 impact thousands of years ago.

A small asteroid lingered close to our planet in its orbit around the Sun, temporarily caught by Earth’s gravity to become a far away mini-moon.

En route to land on the moon, a spacecraft snapped views of Earth eclipsing the sun. The Blue Ghost lunar lander, built by the Texas-based company Firefly Aerospace for NASA, launched to space on ...