Ultramarine dye was the most expensive in Europe until the 19th century, as the lapis lazuli from which it was produced was ...

This time, it has come through an unintentional clash between the Curiosity Rover and a Martian rock in the Gediz Vallis ...

Deep in Chile’s Atacama Desert, scientists studied a green crystal called atacamite—and discovered it can cool itself ...

Curiosity, NASA's Mars rover, accidentally cracked open a seemingly ordinary rock, revealing an unexpected yellow substance ...

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior.

To achieve this feat, the researchers had a brilliantly simple solution: just heating sulfur and tin in the right way can grow pure, high-quality SnS crystals on ordinary silicon wafers.

The crystals are made of pure elemental sulfur, something that has never been seen on the Red Planet before. The odd rock is one of a handful discovered on Mars in just the past year.

Vasavada made these statements after the impressive discovery: "Finding a field of pure sulfur rocks is like finding an oasis in the desert. It shouldn't be there, so now we have to explain it.

The one-ton rover uncovered yellowish-green crystals of pure sulfur during its search for chemical evidence that the Red Planet was once habitable.

During this stage of its 12-year mission on Mars, the rover made some important discoveries, including accidentally unveiling crystals of pure sulfur and finding "wavey" rocks left behind by an ...