In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that ...

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

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

Earth has picked up a new traveling companion – an asteroid named 2025 PN7 that now moves through space in step with us. This ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more detailed analyses verify preliminary observations from the James Webb ...

Scientists are observing an Earth-like exoplanet that may contain water using NASA's James Webb Space Telescope, the space agency said in a news release. The exoplanet, known as TRAPPIST-1 e, orbits ...

An international team has made a significant breakthrough in understanding the tectonic evolution of terrestrial planets.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally published at The Conversation. The publication contributed the ...

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

The California team says finding Earth-like planets is just a matter of time. The study of exoplanets is still very new, after all. Earlier than a decade ago, astronomers figured it would be ...

The planet’s long-standing natural “thermostat” is being outpaced by an feedback loop process involving algae, phosphorus, ...