There are three main types of rock: igneous rock, metamorphic rock ... each of the three rock types has been continuously formed and recycled into other types of rock in a process called the “rock ...

This rock recycling is a process called the rock cycle ... compressed and glued together.Metamorphic rocks are formed from other rocks, igneous or sedimentary, which are heated and compressed ...

Mars's Jezero Crater is offering scientists a treasure trove of intriguing new findings that may hide clues to the Martian past.

Scientists with NASA’s Perseverance rover are exploring what they consider a veritable Martian cornucopia full of intriguing rocky outcrops on the rim of Jezero Crater. Studying rocks, boulders, and ...