Not long after leaving his home planet’s gravitational pull, Artemis II Commander Reid Wiseman photographed a side of Earth not seen by human eyes in decades.

Exactly when and how plate tectonics started, however, is a matter of debate. Now, in a study published March 19 in the journal Science, rock samples from Western Australia hint that the Earth’s crust may have been moving as early as 3.48 billion years ago, roughly one billion years after our planet formed.

A new analysis of meteorite isotopes challenges long-held ideas about Earth’s origins, suggesting our planet may have formed almost entirely from nearby material rather than distant sources. Planetary scientists have long debated the origin of the material that formed Earth.

Hundreds of millions of years ago, Earth’s magnetic field behaved in a way that has long baffled scientists, showing wild and seemingly chaotic shifts unlike anything seen before or since. A new study suggests this chaos may actually hide a deeper pattern: instead of random fluctuations,

High-energy particles called galactic cosmic rays (GCRs) bombard unprotected objects in space, often causing damage. Earth, however, is protected by its magnetic field, which creates a protective shell around the planet that can deflect dangerous charged particles,

Andy Weir discusses his science-fueled novel “Project Hail Mary,” which has been adapted into a film that opens in theaters on Friday.

Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now multiply that by nine. That may be the amount of hydrogen in Earth’s core, possibly making it the planet’s largest hydrogen reservoir, researchers ...

Earth has already exceeded its ability to support the global population sustainably, with new research warning of increasing pressure on food security, climate stability, and human well-being. However,

Olivine, the most common mineral in the upper 400 km (about 250 miles) of Earth’s interior, has long been studied for how it deforms. Scientists have identified two primary directions of dislocation movement, labeled “a” and “c.” A third direction, known as “b,” has traditionally been considered uncommon and less important.

Massive ocean discovered beneath the Earth's crust containing more water than on the surface