Theia (/ ˈ θ iː ə /) is a hypothesized ancient planet in the early Solar System which, according to the giant-impact hypothesis, collided with the early Earth around 4.5 billion years ago, with …

2021年3月23日 · Scientists have long agreed that the Moon formed when a protoplanet, called Theia, struck Earth in its infancy some 4.5 billion years ago. Now, a team of scientists has a …

2023年11月4日 · Theia, an ancient planet, collided with Earth to form the moon, scientists believe. A new study suggests Theia could have also formed mysterious blobs called large low-velocity …

2023年11月8日 · Scientists call the scenario where Theia collided into Earth to form the Moon the Giant Impact Hypothesis. There are debates as to whether that collision was head-on or if …

2020年3月9日 · But deep inside the Moon, the Theia chunk remained relatively intact, and its oxygen isotopes were left closer to their original state. The study claims that this is a pretty …

2014年6月6日 · Our triple oxygen isotope data reveal a 12 ± 3 parts per million difference in Δ 17 O between Earth and the Moon, which supports the giant impact hypothesis of Moon …

2023年11月1日 · A Mars-size object called Theia smashed into Earth, and the debris coalesced into the moon. Now scientists believe they may have identified pieces of Theia at the bottom of …

2023年11月1日 · An artist’s concept showing protoplanet Theia, left, colliding with Earth to eventually form the moon, right, possibly leaving two giant structures embedded in the Earth’s …

2023年11月2日 · Their study posits that the large Theia impactor that struck Earth early on in its history, leading to the Moon's formation, might have left large, dense masses deep in our …

2023年12月4日 · Scientists refer to the rogue impactor as Theia—an ancient deific entity from Greek mythology. Theia is the mother of Selene, known in Roman mythology as Luna, …