Articles by

Sid Perkins

Rock from the impact that formed the moon may linger in Earth’s mantle

About 4.5 billion years ago, a Mars-sized object smashed into the young Earth, spraying debris that coalesced...

Here’s another strike against Venus having copious lightning

Venus has long been depicted as having a hellish atmosphere. Despite that reputation, evidence increasingly suggests...

A one-of-a-kind trilobite fossil hints at what and how these creatures ate

A mysterious, prehistoric marine creature has spilled its guts. For the first time, scientists have unearthed...