Brown University, Providence, Rhode Island, Author at Astronomy.com

Mound near lunar south pole formed by unique volcanic process

What smacks into Ceres stays on Ceres

Solar System, The Moon

Crashing comets may explain mysterious lunar swirls

Exoplanets, Planets, Solar System

Comet dust: Planet Mercury’s invisible paint

Exoplanets, Planets, Solar System

Ancient martian lake system records two water-related events

Cosmology, Galaxies, Milky Way

Unexpected gamma-ray emission from dwarf galaxy may point to new understanding of dark matter

Exoplanets, Planets, Solar System

Meteorite may represent “bulk background” of Mars’ battered crust

How a giant impact formed Vesta’s “belt”

Exoplanets, Planets, Solar System

A habitable environment on martian volcano?

Exoplanets, Planets, Solar System

Ancient volcanic explosions shed light on Mercury’s origins

Exoplanets, Planets, Solar System

Odd martian crater type caused by impacts into ancient ice

Exoplanets, Planets, Solar System

Valley networks suggest ancient snowfall on Mars