PORTLAND, Ore. (KATU) — Ever notice the ocean suddenly creep up the shore, and then pull back hours later? About twice a day, the coast experiences two high tides and two low tides. But what makes these waves? Well, you can look up at the night sky and ...

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

The Moon is gradually drifting away from Earth at a rate you could measure with a ruler if you waited long enough, and this isn’t some random cosmic accident. The process is driven by the same tidal forces that create our ocean tides, and it’s been ...

Discover what a new moon is and when the next new moon will occur with our new moon 2025 guide.

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 space rocks. By examining subtle isotopic fingerprints ...

Approximately 4.5 billion years ago, a planet called Theia slammed into the Earth. The impact melted parts of Earth’s mantle and sent a massive cloud of debris into space. Over time, this debris came together to form the Moon. Scientists have long ...