NASA’s Perseverance Mars rover spotted a strange rock made up of hundreds of tiny spheres that look like clusters […] ...

It depends on what the rocks are made of – and that’s related to how they were formed. There are three main rock types: ...

NASA's Perseverance rover has discovered a bizarrely textured rock covered in hundreds of egg-like spheres on Mars, ...

Metamorphic rocks are also formed because of change in their environment - they are created by great heat or pressure transforming other rock types. For instance, hot, molten lava underground can ...

Sometimes scientists must dig and work and sweat to make scientific discoveries. And sometimes a robot rolls over a rock that turns out to be a revelation. That's what happened when Mars ...