When Jupiter was young, about 4.5 billion years ago, a protoplanet with 10 times the mass of Earth crashed head-on into its surface. The impact shook Jupiter to its core - literally. That's the ...

Oxygen ratios in ancient zircon crystals suggest that the planet’s water cycle got started hundreds of millions of years earlier than thought.

The solar system's most volcanic body, the moon of Jupiter Io, has been in turmoil for at least 4.57 billion years, right back to its birth and the infancy of the sun. Those are the findings of a ...

The study, published in Science, indicates that for most of — or possibly all — its 4.57 billion years of existence, Io has been an angry world. As Jupiter’s innermost large moon ...

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Although not all objects of the solar system are as well known as Earth, Jupiter, or other celestial bodies with main ...

Most are located between Mars and Jupiter in the Main Belt ... a similar process of planetary formation that our solar system ...

Jupiter’s gravity later slung it to Earth ... Our Moon is BornThe birth of the planets 4.5 billion years ago was extremely violent. They grew to full size by absorbing rival planet embryos ...

Io has long been known to be volcanically active, but new research suggests that Jupiter's moon has been spewing lava since the dawn of the solar system, some 4.57 billion years ago. On the 80th ...

Earth and most of the other planets — including Mercury, Mars, Jupiter, Saturn and Neptune — also spin counterclockwise, but ...

Ancient grains of zircon crystals contain evidence suggesting dry land and freshwater may have existed on Earth 4 billion ...