A 4.4-billion-year-old zircon crystal discovered in Australia may be the oldest surviving piece of Earth.

The Curiosity rover identified hidden caches of the mineral siderite, which could help explain why Mars lost its habitable climate.

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence ...

The NASA satellite image shows rust-red rock formations in Wyoming—evidence of 220-million-year-old 'megamonsoons'.

Perseverance explores Jezero Crater’s rim, uncovering diverse rocks that reveal Mars’ ancient geology and possible signs of ...

The land beneath the former Aral Sea in Kazakhstan and Uzbekistan is rising and will continue to do so for many decades. Now, ...

A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...

From dormant volcanoes and salt pans to urban forests and library gardens, these are the places we go for peace and quiet.

Billions of years ago, Mars was warmer and wetter than today, perhaps because volcanoes belched enough carbon dioxide to ...

Two Italian scientists claim to have discovered 38,000-year-old structures buried deep beneath the pyramids. But there's a ...

"The last four months have been a whirlwind for the science team, and we still feel that Witch Hazel Hill has more to tell us." ...

Scientists have discovered that a portion of the North American craton is slowly dripping into Earth's mantle, challenging the idea that these ancient crustal structures are immovable. Seismic imaging ...