Newly analyzed Arctic fossils show that marine ecosystems recovered astonishingly fast after the “great dying.” More than 30,000 teeth, bones, and other fossil fragments from a 249-million-year-old ...

Atoms found deep inside our planet argue that parts of “proto-Earth,” the early version of our planet, still survive inside ...

NASA's Perseverance rover spotted a possible space rock on the surface of Mars. The meteorite's nickname is 'Phippsaksla.' ...

One fateful day about 4.5 billion years ago, a Mars-sized body called Theia collided with proto-Earth, turning both into a ...

They went through the isotope mixtures in Earth and lunar rocks instead of using highly technical models. They dabbled in ...

According to the leading theory of how the Earth-Moon system formed (the Giant Impact Hypothesis), a Mars-sized object (named ...

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

This collision was responsible for more than just creating the moon — it also affected the shape, mass and composition of the Earth. However, new research from the journal Scien ...

Firefly Aerospace Inc. is a high-upside, high-risk space and defense company with strong NASA and Pentagon contracts. Read ...

Around 4.4 billion years ago, a massive collision between the early Earth, called proto-Earth, and a smaller planet named ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.