According to a discovery, planet Earth used to have a ring around it similar to Saturn ... which studied and focused on the impact of craters and asteroids during the planet's early years.

The satellite images suggest that the formation has an average ... this potential crater’. If the ring is confirmed to be created by a meteorite impact, the crater could be a major find ...

Nearly two dozen impact craters known to occur during this time ... we’re talking about,” Tomkins said. However, “this ring formation event we think may have happened only once in the ...

Despite this, all the impact craters ... Earth from a ring, Tomkins said, and suggested in the paper that the odds were about one in 25 million it did not come from a such a formation.

But craters can have different shapes and features – Vredefort has a complex shape and is known as a multi-ring impact basin ... into the circular rock formation of Tnorala.” ...

(Related: "'Fresh' Crater Found in Egypt; Changes Impact Risk ... the shape of the structure with this inner ring can tell us about the exact formation process involved," he added.

Upheaval Dome in Utah, a rock formation ... This ring may have triggered global cooling, contributing to the Hirnantian Ice Age. Evidence includes impact craters near the equator and meteorite ...

The theory would explain the presence of an odd density of impact craters around the equator dating back to the Ordovician period. A ring could ... significant glacier formation, sea level drop ...

However, that impact pales in comparison to the long-term beating Earth has endured since its formation ... is actually the eroded inner ring of a huge impact crater. An almost perfectly ...

The satellite images suggest that the formation has an average ... this potential crater’. If the ring is confirmed to be created by a meteorite impact, the crater could be a major find ...

But craters can have different shapes and features – Vredefort has a complex shape and is known as a multi-ring impact basin ... into the circular rock formation of Tnorala.