Imagine Earth containing the remnants of an ancient planet locked within its mantle. This intriguing concept has gained momentum with recently emerging seismic research showing two gigantic structures ...

'Theia' is a long-vanished world, a planet-sized body thought to have smashed into the early Earth and that helped to form the moon. A new study has now analysed ancient lunar and terrestrial rocks to ...

Seismic imaging has exposed two massive zones hidden deep in Earth’s mantle. These giant blobs, known as large low-velocity provinces, or LLVPs, stretch beneath Africa and the Pacific. They are so ...

Was Mars a friendly planet for water, even life, in its ancient past? Huge channel networks run across its surface. Rocks show signs of water immersion. Yet pictures sent back from NASA's Curiosity ...

Learn about geologic formation on Mars that resemble spiderwebs, serving as records of ancient groundwater flow on the planet.