Earth’s earliest crust may have looked a lot more like the continents we know today than scientists once believed. A recent study shakes up old ideas about how Earth's surface evolved, showing ...

NISAR, built jointly by NASA and India’s space agency and launched on Wednesday, will use radar to monitor tiny changes ...

But researchers disagree on exactly how old they are. Work from two decades ago suggested the rocks could be 4.3 billion years old, placing them in the earliest period of Earth’s history.

Scientists have discovered a new type of sedimentary rock made of debris from slag heaps, formed in the geological blink of ...

Some of them are an astounding 4.4 billion years old, so when geologists and other scientists got to study them, they were not disappointed. Many of the zircons are formed in such ...

A remote outcrop in Canada harbors rocks that are at least 4.16 billion years old, researchers report June 26 in Science. If true, these rocks would be the oldest known on Earth and the first to ...

Earth Science Ancient Rocks in Canada Are Almost as Old as the Earth Itself Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.