(Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else ...

This week's science news.

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

Unlike rocky planets such as Mars and Earth, angrites do not have a lot of silicon dioxide. Because of this, astronomers have ...

Since the dawn of the solar system, rocky visitors from deep space have blazed across Earth’s skies. When will the next asteroid or interstellar object make its pass by our planet?

The study, published in Science Advances, focuses on two elements that are essential for life as we know it: nitrogen and ...

This small, unassuming mineral may be older than Earth itself. Krotite reminds us of the vast timescales and surprising ...

Our solar system is a weird place. Much more than a home to eight planets, it’s filled with a myriad of fascinating other smaller bodies, including moons, asteroids, and comets. In recent decades, ...

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Research in Solar System planetary science spans the origin, evolution and present‐day processes affecting planets, moons, minor bodies and their interactions. The field addresses how protoplanetary ...

Estimating ages of specific events is one of the most difficult problems in astrophysics. While we have a precise (and probably accurate) age for the solar system, we do not have precise ages for each ...