The researchers' idea that Earth once had rings comes from reconstructions of Earth's plate tectonics from the Ordovician ...

Earth may have had a Saturn-like ring system long ago, ... Even Saturn have long term rings despite large moons et cetera, but these became just 30 million years old (see the paper).

Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature could explain a climate shift at the time.

After a near miss with an asteroid 466 million years ago, Earth may have developed a Saturn-like ring of debris that lasted for tens of millions of years – and may have significantly affected ...

Even Earth and Mars may once have had rings. However, no study so far has definitively spotted rings around any of the solar system's 300-odd moons.

Earth Had a Ring 466 Million Years Ago, Study Says. ... a scenario that may be linked to dramatic changes in climate and biodiversity at the time.

An illustration of Earth with a ring. Kevin M. Gill via Wikimedia Commons under CC BY 2.0 During a tumultuous period for our planet around 466 million years ago, Earth was pelted with meteorites ...

New Evidence: Earth Had Rings (and Might Regain Them) Season 11 Episode 1 | 16m 30s Video has Closed Captions | CC. There’s an extremely good chance that Earth once did have a ring system.

Scientists believe that sometime between 3 billion and 600 million years ago, Earth’s oceans had a very different appearance. Instead of reflecting blue light, they may have been glowing green ...

“Earth may have had more than enough ingredients to form water from the beginning,” said planetary scientist Patrick Shober, who was not involved in the research.