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TRINDADE ISLAND, Brazil (Reuters) – The geology of Brazil’s volcanic Trindade Island has fascinated scientists for years, but the discovery of rocks made from plastic debris in this remote turtle refuge is sparking alarm. Melted plastic has become intertwined with rocks on the island, located 1,140 km (708 miles) from the southeastern state of Espirito Santo, which researchers say is evidence of humans’ growing influence over the earth’s geological [...]

(CNN) Recent telescopic data showed that a small planet in the far reaches of our solar system is surrounded by a dense ring. And scientists are puzzled as to why. The planet Quaoar is one of about 3,000 small planets orbiting the Sun beyond Neptune and, at 690 miles (1,110 kilometers) wide, is about the seventh largest, with Pluto and Eris being the largest. Observations of Quaoar conducted between 2018 and 2021 showed that the planet’s ring sits further from it than scientists had [...]

During a break from observing planets around other stars, ESA’s characterizing ExOPlanet Satellite (Cheops) mission has observed a dwarf planet in our own solar system and made a key contribution to the discovery of a dense ring of material around it. The dwarf planet is known as Quaoar. The presence of a ring at a distance of almost seven and a half times the radius of Quaoar leaves astronomers with a puzzle to solve: Why hasn’t this material merged into a small moon? How to [...]