Iapetus

It's hard to believe, but it's already been more than 2000 years since humanity first not only discovered that planet Earth is round in shape, but was able to measure its size as well. Not only are…

Saturn's rings and distinctive tilt may have been caused by the destruction of a previously unknown moon roughly 160 million years ago

The theory explains two longstanding mysteries about the showy gas giant.

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Over 4.5 billion years, volcanoes, asteroids, and climate change have wiped out millions of species.

A recently published study suggests that Saturn's rings formed after two icy moons collided a few hundred million years ago. Other evidence indicates that the orbiting dust...

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They theorize it has to do with the gas giant's missing moon.

A new study suggests Saturn's lost moon Chrysalis came too close to Saturn and was torn apart, forming the ring system we see today. The post How Saturn's lost moon Chrysalis became its rings first appeared on EarthSky.

Planetary scientists propose that Saturn previously had an additional satellite, which they name Chrysalis.

A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the mystery of why no ringed moons exist today.

From strangely spherical orbs to ancient aircraft, the list of supposedly out-of-this-world objects keeps growing. Learn more about five of the most famous fake alien artifacts.

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Saturn's rings could be the remnants of an icy moon that was torn up by the planet's gravitational field.

Discovered by Galileo 400 years ago, the rings of Saturn are about the most striking thing astronomers with small telescopes can spot in our solar system.But even today, experts cannot agree on how or when they formed.A new study published Thursday in the prestigious journal Science sets out to prov...

The origins of Saturn's rings, its unusual tilt and the strange tie between the planet and Neptune have been mysteries for years. They could all be solved by the destruction of a moon

Swirling around the planet's equator, the rings of Saturn are a dead giveaway that the planet is spinning at a tilt. The belted giant rotates at a 26.7-degree angle relative to the plane in which it orbits the sun. Astronomers have long suspected that this tilt comes from gravitational interactions with its neighbor Neptune, as Saturn's tilt precesses, like a spinning top, at nearly the same rate as the orbit of…

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