Scientists have witnessed a dramatic collision between two planets in a distant galaxy that might mirror the way a Mars-like planet crashed into Earth, leading to the formation of the Moon. The ...
The Moon has always held a certain mystery, from influencing tides to inspiring mythology, poetry and scientific inquiry. For decades, astronomers have attempted to answer the same fundamental ...
One bright day on Earth about 4.5 billion years ago, everything changed. A massive object slammed into the young planet. The impact was so large that bits were flung out into space, eventually ...
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 ...
New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun. Artist’s impression of the collision between ...