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 ...

Oxygen isotope analysis of lunar soil shows meteorites delivered only a limited amount of water to the Earth–Moon system ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

Earth has been around for 4.543 billion years. At numerous times during that long history, our planet has shared itself with the rest of the Solar System, particularly with our immediate neighbors. Sc ...

Tiny bits of Earth’s atmosphere have been drifting to the moon for billions of years, guided by Earth’s magnetic field. Rather than blocking particles, the magnetic field can funnel them along ...

Astronomers discovered a "quasi-satellite" of Earth, also known as a "quasi-moon," dubbed 2025 PN7 in 2025. NASA told Snopes that 2025 PN7 has been in its current configuration "since at least the ...

For billions of years, the Moon has been Earth’s steadfast companion, influencing tides, stabilising our planet’s tilt, and shaping the evolution of life. Yet precise laser measurements reveal an ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

Earth has one true moon, but there are also several asteroids known as quasi-moons that are in orbit with the sun. A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that ...