The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...
Earth’s story may have hardened into place almost as soon as the Solar System began. That is the striking claim in new ...
Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That ...
Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...
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NASA-linked study suggests a possible "fifth force" within the solar system
For decades, the four known forces of nature, gravity, electromagnetism, and the strong and weak nuclear forces, have ...
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Earth and Theia smashed to birth the moon, but did they first start out as close neighbors?
Over 4.5 billion years ago, a giant body smashed into Earth in a cosmic collision that birthed our planet's loyal companion, the moon. Now, new research indicates that this body, named Theia, may have ...
About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia collided with the young Earth. How the collision unfolded and what exactly ...
Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...
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