Astronomer and Pluto mission leader S. Alan Stern explores how the field has transformed during his decades-long career.

Scientists have discovered that Mars has an interior structure similar to Earth's. Results from NASA's InSight mission ...

Planets smaller than Neptune but larger than Earth, with atmospheres saturated with water vapor due to extreme temperatures, ...

Mars’ glaciers are over 80% pure ice, formed by similar processes worldwide. This discovery sheds light on past climate and ...

Scientists have calculated the odds of a catastrophic asteroid impact compared to other causes of death—to surprising results.

While initial studies and reports indicated that glaciers on Mars were composed mainly of rock and dust, recent planetary missions prove otherwise.

Asteroids have long been described as the leftover pieces from the solar system’s early construction. They are like the screws, sawdust, and scraps left behind after a house is built, drifting through ...

Europlanet has announced the winners of its inaugural Career Medals, which are designed to honour outstanding contributions ...

Planetary alignments aren’t as rare as people think—but a perfect lineup of all eight planets is almost impossible.

A new international study published in Earth and Planetary Science Letters reveals that the boundaries between geological ...

Space weathering expert Michelle Thompson OSIRIS-REx reveals why some gray asteroids reflect light at different wavelengths, ...

Ari Koeppel is a Postdoctoral Scientist in Earth and Planetary Science at Dartmouth College. Koeppel receives funding from NASA.