ZME Science on MSN
The Lost Planet That Gave Birth to the Moon May Have Been Earth’s Next-Door Neighbor
About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world ...
Space.com on MSN
Earth and Theia smashed to birth the moon, but did they first start out as close neighbors?
"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.
Moon has been Earth’s celestial companion for over four billion years. However, the formation of this natural satellite was catastrophic. It was long believed that the Moon was born from a cataclysmic ...
About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia ...
Morning Overview on MSN
New research says Theia and Earth once orbited as close neighbors
New modeling of the early solar system is reshaping the familiar story of how the Moon formed, suggesting that Earth and the ...
Eons ago, when the Earth was still barely formed, scientists believe a fiery eruption or collision sent a massive spray of debris out into space. That debris, they say, would have then fueled the ...
New observations indicate that the asteroid Lutetia is a leftover fragment of the same original material that formed Earth, Venus, and Mercury. Astronomers have combined data from the European Space ...
Jupiter’s early growth carved rings in the solar system, delayed meteorite formation, and kept planets like Earth in stable ...
For the last 20 years, the best models of planet formation — or how planets grow from dust in a gas disk — have contradicted the very existence of Earth. These models assumed locally constant ...
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